Trump faces a May 1 deadline to justify ongoing military operations against Iran under the War Powers Resolution. The likelihood of the U.S. declaring war on Iran by December 31, 2026, sits at 7% YES.
The War Powers Resolution requires congressional approval to extend military actions beyond 60 days, with the clock starting on March 2. Without approval, U.S. military operations must cease by May 1. This legal constraint has pushed the odds of a formal war declaration lower. The April 30 market prices a declaration at just 0.5% YES.
The term structure shows a 7-point jump from April 30 to December 31, meaning traders see almost no chance of escalation before May but leave some room for later action. Combined USDC volume across these markets is thin, with $85 traded in the last 24 hours, pointing to limited conviction in any near-term shift.
The deadline matters because it forces Trump’s hand. Without congressional backing, operations could legally stop. For traders, buying YES on a December war declaration at 7¢ offers a 14.3x return if Congress acts. That requires believing Trump can rally support in 252 days.
Watch for congressional moves, particularly any signals from Speaker Johnson or public hearings on authorization. Current odds favor a diplomatic outcome over a military one.
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Will The Us Officially Declare War On Iran| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| December 31, 2026 | 7% | — | — | Trade → |
| April 30, 2026 | 0.5% | — | — | Trade → |
| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| April 30 | 3.6% | — | — | Trade → |
