Congress passes Iran war powers resolution by June 30?

Platform comparison

Market context

The real-world event centres on whether both chambers of the US Congress will pass identical legislation to restrict military action against Iran before the end of June 2026. The House approved a war powers resolution on 3 June with a narrow 215–208 vote, defying President Trump and marking a rare bipartisan rebuke of the three-month conflict [1][3]. However, the Senate has repeatedly failed to advance similar measures, including a procedural vote on 19 May and a subsequent attempt on 16 June that fell 47–48, short of the majority needed [2][5].

Historically, such resolutions are often symbolic rather than legally binding, yet they signal deep political fractures within the executive’s own party. The 100% crowd-implied probability appears to overlook the Senate’s consistent inability to secure passage, despite majorities in both chambers opposing the war in principle [4]. Comparable cases, such as the 2002 Iraq War Powers debates, show that even with bipartisan opposition, procedural hurdles and presidential resistance can stall final enactment for months or years.

Traders should monitor upcoming Senate procedural votes, any new bipartisan coalitions forming, and the President’s stated position on extending hostilities. A recent Reuters report notes that increasing apprehension among Republican lawmakers is driving the push for restrictions, yet the Senate’s weekly failures suggest the path remains blocked [2]. Programmatically, this market would be approached by tracking Senate vote timestamps and conditional orders tied to resolution discharge outcomes, rather than assuming automatic passage based on House action alone.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Bot UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.