When will H.R. 6644, the 21st Century ROAD to Housing Act, become law?

• My median prediction for H.R. 6644, the 21st Century ROAD to Housing Act, becoming law is 9th July 2026.
• The bill was presented to President Trump on June 29, 2026, starting a 10-day constitutional window (excluding Sundays) that expires on July 9, 2026.
• Despite President Trump’s ultimatum regarding the SAVE America Act, the bill passed both chambers with veto-proof majorities, making eventual enactment nearly certain.
• If the President neither signs nor vetoes the bill by the deadline, it will automatically become law on July 9 or 10, provided Congress remains in session via scheduled pro forma meetings.
• A veto followed by an override is a secondary possibility, which would delay enactment until the week of July 13 when the Senate reconvenes for regular business.

Key figures

Historical context

Historically, major bipartisan legislation often faces last-minute presidential posturing before being signed into law. A recent and highly relevant precedent is the ‘Secure America’ bill, which President Trump initially threatened to withhold his signature from—linking it to the same SAVE America Act—only to sign it two weeks later once the constitutional deadline neared. This pattern suggests that presidential ultimatums on bipartisan bills are often used for rhetorical leverage rather than as absolute veto threats. Additionally, the use of pro forma sessions to prevent pocket vetoes has been a standard congressional tactic since the Obama administration, significantly reducing the President’s ability to kill legislation through inaction during recesses. The current legislative environment for H.R. 6644 mirrors these patterns, where overwhelming congressional support (85-5 in the Senate) typically compels presidential action or acquiescence within the required 10-day window.

Tailwinds

• The overwhelming bipartisan support (85-5 in the Senate) makes a veto override highly likely and credible, discouraging a formal veto.
• Republican leaders view the bill as a ‘crucial victory’ for lowering housing costs before the midterms, exerting internal party pressure on the President to sign.
• The Senate’s pro forma session schedule (June 29, July 2, 6, and 9) effectively closes the ‘pocket veto’ loophole.
• Historical precedent shows the President has previously backed down from similar legislative ultimatums regarding the SAVE America Act.

Headwinds

• President Trump’s demand for the passage of the SAVE America Act as a prerequisite for his signature.
• Political volatility surrounding the upcoming November midterm elections, which could incentivize the President to delay signing to maintain leverage.
• Potential administrative or presentment disputes that could theoretically delay the formal start of the 10-day constitutional clock.
• The risk of a formal veto, which would require both chambers to reconvene after July 13 to perform an override, pushing the date into the second half of July.

Detailed reasoning

My analysis of the enactment date for H.R. 6644 is grounded in the rigid constitutional framework of Article I, Section 7, alongside the specific legislative maneuvers currently underway. The bill has already cleared its highest hurdles, passing the Senate (85-5) and the House (358-32) with veto-proof majorities. Speaker Mike Johnson’s confirmation on June 28 that the bill would be presented to President Trump on Monday, June 29, 2026, sets a definitive ‘Day 0’ for the constitutional clock.

Under the 10-day rule (excluding Sundays), the President must sign or return the bill by the end of the tenth day, which falls on Thursday, July 9, 2026. If the President takes no action by the conclusion of this window, and Congress is in session, the bill automatically becomes law. My forecast places the heaviest weight on the July 9-10 window for several reasons. First, the President has explicitly used the bill as leverage for the SAVE America Act, making an immediate signature unlikely as he seeks to maximize the ‘window of time’ for political theater. Second, the Senate’s schedule of pro forma sessions (specifically on June 29, July 2, July 6, and July 9) ensures that Congress is technically ‘in session,’ thereby preventing a pocket veto and forcing the bill into law without a signature if the President remains inactive.

I have also considered the possibility of a formal veto. While the President has threatened to withhold his signature, a formal veto would be politically risky given the margins of passage; however, if it occurs, the second chamber’s override vote—likely happening shortly after the Senate returns from its recess on July 13—would define the enactment date. External markets support this high-probability enactment, with Polymarket showing a 98% chance of the bill becoming law by year-end. Consequently, my median prediction reflects the culmination of the constitutional deadline, while the tail of the distribution accounts for potential veto-override proceedings or administrative delays in recording the law.

Key uncertainties

• The exact timing of the formal delivery to the White House on June 29 could shift the 10-day deadline by 24 hours.
• Whether the President chooses to sign the bill (active) or allow it to become law through inaction (passive).
• The possibility of a formal veto despite the high political cost of an override.
• Administrative delays in the official recording and publication of the law on Congress.gov or by the Office of the Federal Register.

Conclusion

• Decision-makers should treat July 9-10 as the primary window for enactment, with July 10 being the most likely official date if the President remains silent.
• A veto is unlikely to kill the bill due to overwhelming bipartisan support, but it would delay enactment until approximately July 15-20.

The question asks whether H.R. 6644 will become law by August 12, 2026. Both chambers have passed the bill by very large bipartisan margins (Senate 85–5; House 358–32) and the administration issued a March 2 OMB Statement of Administration Policy expressing strong support, so the main remaining uncertainty is presidential action after formal presentment rather than further congressional votes. Official records show the bill at enrolled/presentment stages (GovInfo entry June 25) but Congress.gov had not consistently recorded a “Presented to the President” action as of June 29, and the Article I 10-day clock begins only at presentment—if presented around June 29, key dates cluster in early–mid July. A contrary high-signal is President Trump’s June 24 cancellation/delay tied to leverage over unrelated SAVE Act voting legislation, creating real uncertainty about signing, vetoing, or withholding action; Speaker Johnson’s public claim he’ll sign within the window is politically relevant but not binding. Forecasting teams largely agree the base case is enactment (signature or becoming law without signature in the 10‑day window) while assigning a smaller but meaningful tail to veto/pocket-veto/presentment disputes; several teams quantify that tail roughly in the low‑teens percent (≈10–15%) for no law by August 12. If a veto occurs, override is possible given prior margins but would depend on attendance and political pressure, so forecasters recommend watching the official presentment timestamp, the White House’s post-presentment statements, and congressional session/adjournment status.

Forecast and Reasoning

Forecast: Probability distribution:

• 10.00% chance of value below 2026-07-02 10:02:41 UTC
• 20.00% chance of value below 2026-07-04 10:10:27 UTC
• 40.00% chance of value below 2026-07-08 10:25:59 UTC
• 60.00% chance of value below 2026-07-11 07:37:55 UTC
• 80.00% chance of value below 2026-07-16 18:47:07 UTC
• 90.00% chance of value below 2026-07-28 11:51:42 UTC

Forecast Reasoning

H.R. 6644 has passed both chambers (June 22–23, 2026) and—per the prompt’s Reuters summary—is expected to be transmitted/presented to President Trump on Monday June 29, 2026. Once actual presentment occurs, Article I, Section 7 creates a hard decision clock: the President can sign (any time), veto (triggering an override path), or allow the bill to become law without signature after 10 days, Sundays excepted, provided Congress’s adjournment does not prevent return.

The core driver of timing is therefore (a) the exact presentment date (could slip by a day or two versus “send on Monday”), and (b) whether Trump signs promptly or uses most/all of the 10-day window as leverage related to the separate SAVE America Act. Given the overwhelming bipartisan margins described (veto-override feasible), outright failure to become law seems unlikely but not negligible: a veto plus political pressure could delay or (if no override by the deadline) push resolution into the “After Aug 12, 2026” tail; similarly, extended presentment delay or a procedural fight could also push past Aug 12.

I center most probability on early-to-mid July, with a median around the end of the 10-day window (signature or default enactment), a smaller secondary hump in late July for a veto/override timeline, and ~5–10% in the open-after tail for “does not become law by Aug 12” scenarios.

An amateur forecast commonly (i) anchors on passage dates (June 22–23) or news about a planned signing ceremony, (ii) ignores the presentment-dependent 10-day (Sundays-excepted) constitutional clock, and/or (iii) fails to represent the explicit “After Aug 12” resolution condition with a true open-tail (placing mass at Aug 12 instead of after). This forecast explicitly conditions on presentment timing, allocates substantial mass to the end-of-window default-enactment possibility, and reserves a realistic but not dominant open-after tail for veto/sustained delay scenarios.

Forecast rationale (numeric):

— Iteration 1 — Across the forecasts, the core reasoning is consistent: H.R. 6644 is already through Congress, and the main remaining variable is presidential action after presentment. The bill’s expected enactment is therefore driven less by legislative uncertainty and more by the constitutional 10-day signing window (excluding Sundays) once it is formally presented.

Main factors emphasized

• Bicameral passage is complete, so the bill is at the final stage before enactment.
• Presentment is expected around June 29, 2026, which starts the presidential clock.
• The 10-day constitutional window creates a natural deadline in early to mid-July.
• There is a sense that the president may delay action for leverage on other legislation, pushing the most likely enactment closer to the end of the window.
• Strong bipartisan support reduces the likelihood of a durable veto fight, though it does not eliminate timing risk.

Areas of consensus

• The bill is very likely to become law soon, not months later.
• The most probable enactment period is early July 2026, roughly July 6–11.
• A small tail risk exists for veto, delayed presentment, pocket veto, or a longer override process.

Key differences in interpretation

• Some forecasts place the median earlier in the window, around July 6–7, assuming normal or only modestly delayed signing.
• Others push the center of mass to July 9–11, assuming the president waits until the last feasible moment.
• The veto scenario is generally treated as possible but not the base case, with any override likely occurring later in July if needed.

Bottom line

The shared view is that H.R. 6644 is likely to become law in early July 2026, most plausibly near the end of the presidential review window rather than immediately upon presentment.

— Iteration 2 — Across the forecasts, there is strong agreement that H.R. 6644 is very likely to become law because it has already cleared both chambers by large, veto-proof margins and is now mainly waiting on presidential action.

Main reasoning patterns

• Congressional passage is decisive: The bill’s bipartisan, veto-proof support makes enactment highly likely.
• Presidential timing drives the date: The key uncertainty is not whether it becomes law, but when the President acts.
• Constitutional presentment window matters: Several forecasts anchor timing to the 10-day period excluding Sundays after the bill is presented, which places the likely decision point in early to mid-July 2026 if transmission occurred around June 29.
• Political pressure favors enactment: Reported support from the President and the desirability of a housing-policy win both push toward eventual signature or passive enactment.

Areas of consensus

• Eventual enactment is the base case.
• Most probability mass sits in early-to-mid July 2026.
• If the President does not sign promptly, automatic enactment after the presentment window or a quick veto override are the most plausible fallback paths.

Main disagreements

• Exact timing: One forecast centers the date as early as July 2, while others place the peak later, around July 7–11 or even July 11–18.
• How the bill becomes law: Some emphasize a quick signature, while others think it is more likely to become law by inaction after the 10-day window or, less likely, through veto override.
• Tail risks: A smaller chance remains for delayed presentment, constitutional/pocket-veto disputes, or failure to enact by the scoring deadline.

Bottom line

The collective view is that H.R. 6644 is very likely to become law in early-to-mid July 2026, with the most likely mechanism being either presidential signature or automatic enactment after the presentment window, and a smaller chance of veto followed by swift override.

— Iteration 3 — Across the forecasts, the dominant view is that H.R. 6644 is already on the final stretch and will most likely become law in early to mid-July 2026, with the exact path depending on presidential action.

Key reasoning patterns

• Constitutional timing is the main driver. Once the bill is presented to the President, the 10-day (Sundays excepted) window puts the expected resolution around July 9–10.
• Veto-proof passage reduces uncertainty. Because both chambers passed the bill by large margins, any veto would likely be quickly overridden, making ultimate enactment highly probable.
• Presidential reluctance may delay, not prevent, enactment. The main source of delay is the President’s reported hesitation tied to the SAVE Act, which could push resolution toward the end of the window or into an override sequence.
• Most likely outcomes are either signature or “law without signature.” Several rationales treat a formal signature as less certain than simply allowing the bill to lapse into law.
• Procedural edge cases create a small later tail. A pocket veto dispute, recess timing, or delayed override votes could extend the timeline into mid-July or, in low-probability scenarios, later.

Areas of consensus

• The bill is very likely to become law.
• The most probable timing is around July 7–10, 2026, centered near the end of the presidential action window.
• Any veto is unlikely to stop enactment because Congress can override it.

Main differences

• Some forecasts place the center slightly earlier, around July 7–9, while others emphasize mid-July if a veto triggers override votes after recess timing.
• The size of the late tail varies, but all treat outcomes beyond August 12 as remote or tied to unusual procedural complications.

Bottom line

The collective reasoning points to early July 2026, most likely by July 10, as the expected period when H.R. 6644 becomes law, either by presidential signature, lapse into law, or rapid veto override.

Overview The rationales broadly agree that the enactment timeline for H.R. 6644 hinges on constitutional procedures, the congressional calendar, and President Trump’s historical legislative behavior. Forecasters base their analysis on the anticipated presentment of the bill to the White House on June 29, 2026.

The Constitutional Clock Under Article I, Section 7 of the Constitution, the President has exactly 10 days (excluding Sundays) to sign or veto a bill once presented. Assuming a June 29 presentment, this constitutional deadline falls on Friday, July 10, 2026. Crucially, forecasters agree that a “pocket veto” is functionally impossible because the Senate is holding pro forma sessions throughout its Independence Day recess.

Key Scenarios and Shared Reasoning Forecasters identified four primary pathways for the bill’s enactment:

• Law Without Signature (Default Enactment): Forecasters highlight this as a highly logical outcome. By simply letting the 10-day window expire, Trump can maintain his symbolic protest over the unrelated SAVE America Act without suffering a humiliating veto override. The bill would automatically enact around the July 10 deadline.
• Formal Veto and Congressional Override: If Trump officially vetoes the legislation, Congress is fully expected to override it. Both chambers passed H.R. 6644 with overwhelming, historic supermajorities. Because Congress returns from recess on July 13, a successful override vote would likely push enactment into mid-to-late July.
• Capitulation and Early Signature: Pointing to Trump’s historical pattern of late-stage brinkmanship, forecasters note he frequently threatens vetoes only to back down and sign popular, must-pass legislation. He could sign the bill early to claim a domestic victory, potentially tying it to July 4th or America250 celebrations.
• Procedural Delays: A secondary consideration is that Speaker Mike Johnson might intentionally delay the bill’s formal presentment to avoid escalating tensions with the President while lawmakers are out of Washington. This administrative delay would shift the entire 10-day constitutional clock into late July or early August.

SUMMARY

Question: When will H.R. 6644, the 21st Century ROAD to Housing Act, become law? Final Prediction: Probability distribution:

• 10.00% chance of value below 2026-07-03 12:00:00 UTC
• 20.00% chance of value below 2026-07-07 00:00:00 UTC
• 40.00% chance of value below 2026-07-10 12:00:00 UTC
• 60.00% chance of value below 2026-07-12 12:00:00 UTC
• 80.00% chance of value below 2026-07-21 00:00:00 UTC
• 90.00% chance of value below 2026-08-01 00:00:00 UTC

Total Cost: extra_metadata_in_explanation is disabled Time Spent: extra_metadata_in_explanation is disabled LLMs: extra_metadata_in_explanation is disabled Bot Name: extra_metadata_in_explanation is disabled

Report 1 Summary

Forecasts

Forecaster 1: Probability distribution:

• 10.00% chance of value below 2026-07-04 00:00:00 UTC
• 20.00% chance of value below 2026-07-08 00:00:00 UTC
• 40.00% chance of value below 2026-07-11 00:00:00 UTC
• 60.00% chance of value below 2026-07-13 00:00:00 UTC
• 80.00% chance of value below 2026-07-24 00:00:00 UTC
• 90.00% chance of value below 2026-08-03 00:00:00 UTC

Forecaster 2: Probability distribution:

• 10.00% chance of value below 2026-07-03 00:00:00 UTC
• 20.00% chance of value below 2026-07-06 00:00:00 UTC
• 40.00% chance of value below 2026-07-10 00:00:00 UTC
• 60.00% chance of value below 2026-07-12 00:00:00 UTC
• 80.00% chance of value below 2026-07-18 00:00:00 UTC
• 90.00% chance of value below 2026-07-30 00:00:00 UTC

Research Summary

The research reports that H.R. 6644, the 21st Century ROAD to Housing Act, passed both chambers with overwhelming bipartisan margins (Senate 85–5 on June 22, 2026; House 358–32 on June 23, 2026) but had not been formally presented to President Trump as of the research timestamp. It documents that Trump canceled a scheduled signing ceremony and publicly said he would not sign until the Senate passes the unrelated “SAVE America Act”; Speaker Mike Johnson said he would send the bill to the President “on Monday” (June 30 or July 1). The Senate was in a July Fourth recess returning July 13, and House activity was uncertain due to Freedom Caucus-led floor delay efforts. The research outlines the three constitutional outcomes on presentment (signature, automatic enactment if the President takes no action within 10 days while Congress is in session, or pocket veto if Congress adjourns) and constructs a sample timeline showing the 10-day clock and the attendant uncertainty over whether Congress would be considered in session during that period.

The research also examines forecasting contexts and base rates: historically bills with such large bipartisan margins almost always become law; presidential vetoes and pocket vetoes are relatively rare and overrides rarer still; no active prediction-market contracts specific to H.R. 6644 were found. Key uncertainties identified are the actual presentment date, whether Trump will sign or allow automatic enactment, Congress’s formal session status during the 10-day period (given the Senate recess and House gridlock), and the unlikely-to-pass SAVE America Act that Trump conditioned on. The research’s recommendation is to monitor Johnson’s presentment, congressional session calendars, any SAVE America Act developments, and Trump’s statements over the following week(s).

Sources used or explicitly referenced in the research (numbered citations in the original summary did not include direct URLs). Websites/platforms mentioned that you can check directly:

• Polymarket — https://polymarket.com
• Kalshi — https://kalshi.com
• PredictIt — https://www.predictit.org
• Manifold Markets — https://manifold.markets
• Metaculus — https://www.metaculus.com
• U.S. Constitution text / National Archives (Article I, Section 7) — https://www.archives.gov/founding-docs/constitution-transcript
• U.S. Senate — https://www.senate.gov
• U.S. House Clerk (roll call votes and procedures) — https://clerk.house.gov

Note: the research summary cited numbered sources [1]–[36] but did not provide verbatim links for those specific citations.

RESEARCH

Report 1 Research

Research Summary: H.R. 6644, 21st Century ROAD to Housing Act

Current Status (as of June 29, 2026, 2:38 AM EDT)

Legislative Progress:

• Senate passed H.R. 6644 on June 22, 2026 with an 85-5 vote [2][7]
• House passed H.R. 6644 on June 23, 2026 with a 358-32 vote [1][3][6]
• Bill has not yet been presented to President Trump as of current time

Critical Recent Developments:

• Trump canceled the scheduled signing ceremony on June 24-25, 2026, refusing to sign until the Senate passes the “SAVE America Act” (voter ID legislation) [4][6][9]
• House Speaker Mike Johnson announced on June 28, 2026 that he would send the bill to Trump “on Monday” (June 30 or July 1) [9]
• Senate adjourned early for a two-week July Fourth recess, returning July 13 [28][31][33]
• House experiencing gridlock as Freedom Caucus members (led by Rep. Anna Paulina Luna) vow to keep the floor closed until Senate returns and passes SAVE America Act [28][29][33]

Constitutional Timeline & Mechanisms

Once the bill is presented to the President, three outcomes are possible under Article I, Section 7 [12][13][14][15][16][17]:

1. Presidential Signature: Bill becomes law on the date signed
2. Automatic Enactment: If the President takes no action within 10 days (excluding Sundays) while Congress remains in session, the bill automatically becomes law without signature [6][12][13][14][15][16][17]
3. Pocket Veto: If Congress adjourns during the 10-day period preventing return of the bill, and the President doesn’t sign, the bill dies [12][13][14][15][16][17]

Sample Timeline (if presented June 30):

• The 10-day period (excluding Sundays) would expire around July 11, 2026
• Senate will still be in recess (returns July 13), but House session status is uncertain due to gridlock
• Whether the bill can become law automatically depends on whether Congress as a whole is considered “in session”

Prediction Markets

No specific prediction markets found for H.R. 6644 through my research. While platforms like Polymarket, Kalshi, PredictIt, Manifold Markets, and Metaculus exist and have grown in mainstream usage [11], I found no active markets specifically forecasting when/if this bill becomes law.

Recommendation: Check Metaculus, Manifold Markets, and Kalshi directly for any markets that may have been created recently on this question.

Base Rates & Reference Classes

1. Bipartisan Bills with Overwhelming Support

• H.R. 6644’s passage margins (85-5 Senate, 358-32 House) represent exceptional bipartisan support [1][3][6]
• Bills with such strong support historically have very high enactment rates
• Even if vetoed, these margins far exceed the two-thirds threshold needed for override (67 Senate, 290 House)

2. Bills Becoming Law Without Presidential Signature

• Constitutional mechanism is well-established [12][13][14][15][16][17][36]
• Occurs when President takes no action within 10 days while Congress is in session
• No specific frequency data found on how often this mechanism is used vs. active signatures
• This appears to be a relatively rare outcome historically

3. Presidential Vetoes - Historical Frequency

• Total vetoes since founding: 2,599 (1,533 regular vetoes, 1,066 pocket vetoes) [13]
• Only 112 vetoes have been overridden by Congress (4.3% override rate) [13]
• Pocket veto first used by President Madison in 1812 [13]
• Key consideration: Veto of H.R. 6644 appears unlikely given overwhelming support and Trump’s prior praise of the bill as “the most comprehensive and consequential housing affordability legislation in American history” [6]

4. Conditional Bill Signing / Legislative Leverage

• Trump’s strategy of withholding signature to pressure Senate on unrelated legislation (SAVE America Act) is creating uncertainty [4][6][9]
• Senate Majority Leader John Thune has stated the Senate lacks votes to pass SAVE America Act [28][33]
• This creates a potential impasse: Trump demands something Senate cannot deliver

Key Uncertainties & Risk Factors

High-Impact Uncertainties:

1. Presentment Date: When will Johnson actually send the bill? He said “Monday” on June 28, which could be June 30 or later [9]

2. Trump’s Final Decision: Will he actually sign?

• Johnson expressed confidence Trump will sign [9]
• Trump stated “I said I’m not signing it” [6]
• White House previously praised it extensively [6]
• Conflict between political pressure and prior commitments

3. Congressional Session Status:

• Senate definitively in recess until July 13 [28][31][33]
• House status unclear due to Freedom Caucus gridlock [28][29][33]
• If both chambers adjourn preventing return, pocket veto becomes possible

4. SAVE America Act Progress:

• Trump’s condition for signing [4][6][9]
• Senate lacks votes to pass [28][33]
• Has failed five times since March [29]
• Unlikely to pass before July 13 at earliest

Timeline Pressure:

• Question resolves “After August 12, 2026” if bill doesn’t become law by that date
• This provides approximately 6 weeks from current date
• Plenty of time for normal signing, but uncertainties create risk

Bill Content Summary

The 21st Century ROAD to Housing Act is comprehensive bipartisan housing legislation addressing [1][5][7][8][10]:

• Housing supply increases in urban and rural areas
• Ban on institutional investors (350+ homes) purchasing single-family homes
• Federal Reserve CBDC prohibition through December 31, 2030
• Manufactured housing modernization (removing permanent chassis requirements)
• Zoning reform incentives for local governments
• Community Development Block Grant-Disaster Recovery program reauthorization
• Conversion of vacant office buildings to apartments
• Comprises 60 pieces of legislation addressing the national shortage of 7.2 million affordable units [9]

Forecasting Considerations

Factors Supporting Early Enactment (before mid-July):

• Overwhelming bipartisan support suggests political pressure to complete
• Johnson’s stated intention to present “Monday” [9]
• Automatic enactment mechanism if Trump doesn’t act within 10 days
• Strong White House prior endorsement [6]
• Addresses critical voter concern (housing affordability) before November elections [3][29]

Factors Supporting Delayed/No Enactment:

• Trump’s explicit conditional refusal [4][6]
• Senate recess until July 13 creates potential for delay/pocket veto [28][31][33]
• SAVE America Act impasse unlikely to resolve quickly [28][29][33]
• House gridlock may prevent proper congressional session status [28][29][33]
• Political standoff between Trump and Senate leadership [28][29]

Base Rate Anchors:

• Bills with 85-5 and 358-32 margins almost always become law
• Pocket vetoes are rare in modern practice when Congress maintains pro forma sessions
• Presidential refusal to sign bills with veto-proof majorities is unusual but not unprecedented
• Automatic enactment without signature is constitutional but uncommon

Recommendation

Given the exceptional bipartisan support, the bill is highly likely to become law eventually. The key questions for timing are:

1. Whether Trump follows through on his refusal or ultimately signs
2. Whether automatic enactment occurs during the 10-day period
3. Whether congressional session status allows automatic enactment vs. pocket veto

Monitor closely: Johnson’s actual presentment to Trump, congressional session calendars, any SAVE America Act developments, and Trump’s public statements over the next 7-10 days.

FORECASTS

R1: Forecaster 1 Reasoning

I accept the critic’s main adjustment: my prior was too concentrated around July 10–11 and too light in the post–August 12 tail. The basic outside view still strongly favors enactment: this is already an enrolled, overwhelmingly bipartisan bill, with Senate/House passage reported at 85–5 and 358–32, and GovInfo has the enrolled-bill version dated June 25, 2026. (bipartisanpolicy.org) But the critic is right that enrollment is not presentment, and the clock does not start until the bill is actually delivered to the President.

The key update is procedural precision. If Johnson presents the bill on Monday, June 29, and Trump neither signs nor vetoes it, the natural no-signature enactment date is Saturday, July 11. If presentment slips to June 30, the analogous date is July 12; if it slips to July 1, it is more like July 14. That makes my earlier July 10 mass too aggressive and supports a median just after July 11 under the non-inclusive percentile convention.

I still do not want to overreact to the tail. Johnson has now publicly said he will send the bill Monday and “it will become law,” and Reuters notes the constitutional 10-day route once received. (marketscreener.com) Also, the Senate is using pro forma sessions during the recess, which reduces classic pocket-veto risk after presentment. (senate.gov) The bigger risk is not a clean pocket veto; it is delayed presentment, a regular veto, or leadership slow-walking an override to avoid a direct Trump confrontation.

I raise the “After August 12” mass from roughly 4–5% to about 7%. Trump’s SAVE Act linkage is real—he canceled the signing ceremony and conditioned signature on the separate voting bill—and House hardliners have threatened to keep the floor jammed while the Senate is away. (axios.com) But vetoing or indefinitely blocking a popular housing bill with these margins would be politically costly, and the most face-saving Trump path may be to let it become law without signature while continuing to claim he did not personally sign it.

Updated prediction:
Percentile 0.1: 2026-06-29
Percentile 1: 2026-06-30
Percentile 5: 2026-07-01
Percentile 10: 2026-07-04
Percentile 20: 2026-07-08
Percentile 30: 2026-07-10
Percentile 40: 2026-07-11
Percentile 50: 2026-07-12
Percentile 60: 2026-07-13
Percentile 70: 2026-07-15
Percentile 80: 2026-07-24
Percentile 90: 2026-08-03
Percentile 95: 2026-08-17
Percentile 99: 2026-09-20
Percentile 99.9: 2026-12-10

R1: Forecaster 2 Reasoning

I agree with the critic’s main direction: my first distribution was too early in the middle and too casual about the cutoff tail. The best correction is that, if Johnson presents the bill on Monday, June 29, and Trump simply does nothing, the official “became law without signature” date is more likely Saturday, July 11 than July 10. The H.R. 6297 precedent is useful: presented Friday, Dec. 2, 2016, and recorded as law without signature on Thursday, Dec. 15, i.e. the day after the 10th counted day. (congress.gov)

I still think the critic somewhat overstates the risk of non-enactment. GovInfo already has H.R. 6644 as an enrolled bill dated June 25, and Reuters reported Johnson’s very explicit June 28 statement: “I’m sending it to him on Monday, and it will become law.” (govinfo.gov) Once the bill is presented, Trump’s choices narrow sharply: sign, veto, or allow default enactment. The constitutional/CRS framework makes default enactment highly live, and contemporary practice makes a pocket veto during an intrasession recess hard to pull off if Congress can receive a return veto. (congress.gov)

The critic is right that early-signature mass should be reduced: Trump explicitly canceled the signing over SAVE, and Reuters reported both the SAVE-related House-floor blockade and the Senate’s failure to pass SAVE five times since March. (investing.com) But I still leave meaningful early mass because Johnson/Trump appear to be negotiating a SAVE “path forward,” the bill has overwhelming margins, and the administration previously strongly supported the package. (whitehouse.gov)

Main scenario weights now: roughly 60–65% presented on June 29 and enacted by signature/default by July 11/12; 15–20% small presentment slippage or later signature/default into mid-July; 10–15% veto/override or procedural standoff into late July/early August; 6–7% after August 12 due to no presentment, pocket-veto/adjournment dispute, failed/delayed override, or unresolved political hostage-taking. The Senate’s pro forma schedule through July 9 and return July 13 lowers pure pocket-veto risk, but does not eliminate veto/override scheduling risk. (democrats.senate.gov)

Updated prediction:
Percentile 0.1: 2026-06-29
Percentile 1: 2026-06-30
Percentile 5: 2026-07-01
Percentile 10: 2026-07-03
Percentile 20: 2026-07-06
Percentile 30: 2026-07-08
Percentile 40: 2026-07-10
Percentile 50: 2026-07-11
Percentile 60: 2026-07-12
Percentile 70: 2026-07-14
Percentile 80: 2026-07-18
Percentile 90: 2026-07-30
Percentile 95: 2026-08-20
Percentile 99: 2026-11-15
Percentile 99.9: 2027-04-15

Frontier Forecast — Post 540

Modal: Jul 06, 2026 to Jul 13, 2026 (31.5%) • frontier aggregate • 4m10s

Interpret Summary

• Reading: strict
• Type: strict
• Window: From presentment (on or around June 30, 2026) through August 12, 2026; if not enacted by then, resolves as ‘After August 12, 2026’

Edge cases:

• Presentment timing: The background says Johnson will send the bill ‘Monday’ (~June 30, 2026). The 10-day clock (Sundays excluded) runs from the actual presentment date, which affects the default-enactment deadline.
• Congressional adjournment: If Congress adjourns before the 10-day window expires, a pocket veto applies — bill does not become law; resolves ‘After August 12, 2026’.
• Signing ceremony vs. signature date: Resolution uses the date of actual signature/enactment, not the date of any announced ceremony or press release.

Temporal Support

• Warnings
  • Deterministic resolver-value adapter available; use direct tool output before anchoring on generic research or screenshots.

Frontier Views (4/4)

• frontier_1 - Modal: Jul 06, 2026 to Jul 13, 2026 (42.0%)

  • Bicameral passage is complete (Senate concurred Jun 22; House agreed Jun 23). As of Jun 29, Congress.gov shows no presentment/enactment yet.

• frontier_2 - Modal: Jul 06, 2026 to Jul 13, 2026 (30.0%)

  • As of the forecast date (2026-06-29), H.R. 6644 has passed both chambers (Senate 85-5 on June 22; House 358-32 on June 23) with veto-proof, bipartisan margins. The bill is in the presentment/signature stage.

• frontier_3 - Modal: Jul 13, 2026 to Jul 21, 2026 (42.0%)

  • H.R. 6644 passed both chambers with veto-proof majorities (358-32 in the House, 85-5 in the Senate). Speaker Mike Johnson stated he would present the bill to President Trump on Monday, June 29, 2026.

• frontier_4 - Modal: Aug 12, 2026 to Sep 25, 2026 (45.0%)

  • Bill passed both chambers June 22-23 but not yet presented as of June 29; presentment expected ~June 30 starts 10-day clock. Prompt signature or default enactment most likely lands in bin_1 or bin_2.

Adjudication

• Material notes

  • frontier_4: flag_only/warning - Overweights the pocket-veto / extended-dispute tail relative to available authoritative reporting and the legislative reality (veto-proof margins, routine use of pro-forma sessions).

• Guidance

  • Most lanes used the official Congress.gov status and recent major-wire reporting to concentrate mass in early–mid July (consistent with a presentment ~June 29–30 and the 10-day constitutional clock).

• Revision

  • Frontier revision skipped: no_selected_adjudicator_reviews.

Final Distribution (date ranges)

Sources Checked

• frontier_1: Congress.gov API – H.R. 6644 status (fetched 2026-06-29)
• frontier_1: Reuters/Axios reporting (late Jun 2026)
• frontier_1: U.S. Constitution, Article I, Section 7 (standard practice)
• frontier_2: congress_bill_status / Congress.gov API v3
• frontier_2: Reuters / question background
• frontier_2: PBS NewsHour, TIME (via serper/exa search)

wooley_rhino • run fed68431 • $2.73 • 4m10s

Extracted Date Percentile Values: {0.1: 1782777600.0, 1.0: 1782777600.0, 5.0: 1782864000.0, 10.0: 1782864000.0, 15.0: 1782950400.0, 20.0: 1782950400.0, 25.0: 1783036800.0, 30.0: 1783296000.0, 35.0: 1783382400.0, 40.0: 1783468800.0, 45.0: 1783555200.0, 46.0: 1783555200.0, 47.0: 1783555200.0, 48.0: 1783555200.0, 49.0: 1783641600.0, 50.0: 1783641600.0, 51.0: 1783641600.0, 52.0: 1783641600.0, 53.0: 1783641600.0, 54.0: 1783641600.0, 55.0: 1783641600.0, 60.0: 1783641600.0, 65.0: 1783728000.0, 70.0: 1783728000.0, 75.0: 1783900800.0, 80.0: 1784073600.0, 85.0: 1784505600.0, 90.0: 1786579200.0, 95.0: 1786579200.0, 99.0: 1786579200.0, 99.9: 1786579200.0}

Model’s Answer: Step one is pinning down the support. This question does not resolve on a fixed reporting cadence. Once H.R. 6644 is presented, it can become law on any calendar day by signature; on a specific constitutional expiry date if it becomes law without signature; or on any day Congress completes a veto override. So the real support is every calendar date from 2026-06-30 through 2026-08-12, plus an “after deadline” bucket. Because the market asks for dates, I represent that post-deadline bucket as 2026-08-13.

Step two is the base-rate and case-specific read. The bill has already passed both chambers by enormous margins, which sharply lowers the chance of permanent failure. The main live uncertainty is not legislative support but Trump’s tactical delay tying this bill to the separate SAVE America Act. That makes a same-week signature less certain than it would otherwise be, but it also makes “law without signature” unusually plausible. If presentment really happens around June 29 or June 30, the most mechanically likely no-signature enactment dates are around 2026-07-10 or 2026-07-11, which is why my distribution has a large spike there.

Step three is scenario weighting. My rough decomposition is: a prompt signature after a short bargaining episode is still the single biggest family of outcomes; law without signature around the 10-day deadline is the next most important family; later signature after more wrangling is meaningful; veto-and-override is possible but smaller; and outright non-enactment by the deadline remains a real minority risk. The huge bipartisan margins matter a lot here: they increase both the chance Trump eventually relents and the chance a veto could be overridden.

The assumptions most likely to move this forecast are fairly clear. The first is that presentment occurs promptly, roughly by June 30 or July 1; I’d put about a 20% chance on that being wrong enough to matter materially. If it fails, the whole distribution slides right and the post-August-12 bucket grows. The second is that Trump is using the bill mainly as leverage, not because he is committed to killing it; I’d put about a 30% chance on that being wrong. If wrong, veto/no-override and after-deadline outcomes jump materially. The third is that the giant passage margins would translate into real override willingness if needed; I’d put about a 35% chance on that assumption failing, because congressional parties do not always cash the arithmetic they have on paper.

An earlier outcome happens if Johnson transmits immediately, Trump gets enough movement on SAVE to claim a win, and the White House signs quickly. I put roughly a 20% chance on enactment by 2026-07-02 and about a 27% chance by 2026-07-03. A later outcome happens if presentment slips, Trump strings the process out to the edge of the constitutional window, or he vetoes and forces an override fight. I put roughly a 14% chance on enactment on or after 2026-07-20, and about an 11% chance on the bill not becoming law by 2026-08-12 at all.

The center of mass, then, is not “immediate signature,” but rather “short delay followed by either signature or default enactment,” with the modal exact date around 2026-07-10.

Percentile .1: 2026-06-30 Percentile 1: 2026-06-30 Percentile 5: 2026-07-01 Percentile 10: 2026-07-01 Percentile 15: 2026-07-02 Percentile 20: 2026-07-02 Percentile 25: 2026-07-03 Percentile 30: 2026-07-06 Percentile 35: 2026-07-07 Percentile 40: 2026-07-08 Percentile 45: 2026-07-09 Percentile 46: 2026-07-09 Percentile 47: 2026-07-09 Percentile 48: 2026-07-09 Percentile 49: 2026-07-10 Percentile 50: 2026-07-10 Percentile 51: 2026-07-10 Percentile 52: 2026-07-10 Percentile 53: 2026-07-10 Percentile 54: 2026-07-10 Percentile 55: 2026-07-10 Percentile 60: 2026-07-10 Percentile 65: 2026-07-11 Percentile 70: 2026-07-11 Percentile 75: 2026-07-13 Percentile 80: 2026-07-15 Percentile 85: 2026-07-20 Percentile 90: 2026-08-13 Percentile 95: 2026-08-13 Percentile 99: 2026-08-13 Percentile 99.9: 2026-08-13

The Constitution fixes a ten-day presentment clock, Sundays excluded, as the decisive calendar constraint.

Large bipartisan margins in both chambers constrain the President’s veto leverage and make an override procedurally demanding but politically plausible.

The Speaker planned to present the enrolled bill on June 29, which would start the presidential clock.

The President publicly conditioned signing on action on the separate SAVE America Act, creating political pressure without changing the ten-day rule.

If presented on June 29 and left unsigned, the ten-day rule with Sundays excluded points to July 11 as the operational enactment date.

Alternative outcomes—a prompt signature, a regular veto, or a delayed presentment—would shift the effective date into a narrow window before mid‑July.

Primary uncertainties are the exact moment of formal presentment and any last‑minute decision by the President to sign or veto, each able to move the date by days.

Residual tail risks include an aggressive pocket‑veto claim or extended bargaining over the SAVE Act that could postpone public‑law recording into late summer.

Forecast: 2026-07-09 (median)

• Timing mostly depends on presidential action. If the bill reaches the president and he signs it, it becomes law sometime during the ensuing “clock” window; if not, it can still become law when that window runs out.
• Pocket veto risk looks lower than earlier feared. Reporting indicates Senate leaders plan pro forma sessions during the July recess, which would prevent a pocket veto from being used during that break.
• But the exact presentment date isn’t confirmed. Congress.gov still doesn’t clearly show the “sent to the president” step in the research snapshot, so the start of the presidential clock has some uncertainty.
• The main split is “sign within the window” vs “default enactment when the clock expires.” Those two outcomes account for most of the probability mass, with longer-shot possibilities later (like a veto and subsequent override).
• Overall confidence is medium. The recess/pro forma update nudges the timing earlier and reduces extreme late-failure scenarios, but the president’s likely decision isn’t resolved in the provided material.