Will the Senate pass a reconciliation bill by 2026?

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Market context

The Senate has already taken the first procedural steps on a narrow reconciliation package tied to immigration enforcement funding, but it has not yet passed final legislation. The process began with the April 23 budget resolution vote, then moved to committee drafting, with Senate panels releasing an initial package on 4 May that CBO said would raise deficits by about $72 billion over ten years. In market terms, that leaves a clear distinction between progress and passage: a budget blueprint or committee text is not the same as a Senate vote on the reconciliation bill itself.

For a probability read, the closest comparables are past budget-reconciliation episodes where the early path was easier than the final floor vote, especially once timing, intraparty objections and House-Senate alignment became binding. Here, the crowd-implied 0% looks extreme against the fact that Senate leadership has been targeting completion before 1 June, but the event still requires a number of moving parts to clear in a very short window. On Polymarket the contract is usually quoted as a straight implied probability, while Kalshi and some bookmakers show decimal-style pricing with fees embedded differently; Betfair and Smarkets can also diverge once commission and limited KYC access are factored in, so the same underlying event can look cheaper or dearer depending on venue.

The key catalysts are official Senate scheduling, committee filing deadlines, and whether leadership can unite Republicans around the final text. CBO’s May scores gave the contours: roughly $32.5 billion from Homeland Security committee work and $39.2 billion from Judiciary, implying a package built around DHS, CBP, ICE and related enforcement spending. A trader should watch for a floor filing, a motion to proceed, and any sign that the chambers are converging on the same vehicle; if that slips past the end-of-month window, the “Yes” case weakens sharply.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Will the Senate pass a reconciliation bill by 2026? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram 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.