NY-08 Democratic Primary Winner

Platform comparison

Active sub-markets

Market context

New York's 8th Congressional District will hold a Democratic primary in 2026, with the winner effectively securing the seat given the district's Democratic lean. The 99% crowd probability reflects the near-certainty that a primary contest will occur, as the district has consistently produced Democratic nominees since redistricting in 2022. Incumbent Jerrold Nadler, who represents the district, has not announced retirement plans as of late 2024, though his age and recent health considerations have periodically surfaced in political reporting.

The historical precedent here is straightforward: New York's 8th has held competitive Democratic primaries in recent cycles, most notably in 2022 when Nadler faced challengers following redistricting. Primary contests in this district typically draw multiple candidates and generate substantial turnout, making the outcome genuinely competitive rather than predetermined. The 99% probability primarily reflects confidence that a primary will take place at all—not certainty about any particular candidate's victory.

Traders should monitor Nadler's formal announcement regarding his 2026 intentions, expected sometime in early 2025. The New York Democratic Party's official primary calendar and filing deadlines, typically set in spring 2026, will confirm the contest structure. Any major demographic or political shifts within the district, or unexpected candidate entries from high-profile figures, could alter the competitive landscape materially. The settlement window closes 23 June 2026, aligning with New York's primary election date.

Methodology

We track NY-08 Democratic Primary Winner on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Prediction Today, 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?

Prediction Today 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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does it cost to trade on Prediction Today?

Zero. Prediction Today routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.