NY-08 Democratic Primary Winner

Platform comparison

Active sub-markets

Market context

New York's 8th Congressional District will hold a Democratic primary election in 2026 to select its House nominee. The district, encompassing parts of Brooklyn and Queens, has been represented by Democrat Jerrold Nadler since 1992. The current 100% implied probability reflects the near-certainty that a Democratic primary will occur, given the district's strong Democratic lean and historical pattern of contested primaries in this seat.

The 2022 redistricting created significant uncertainty in the district's composition, triggering a competitive primary that year between Nadler and Carolyn Maloney. Nadler's subsequent victory and continued tenure suggest incumbency advantage will likely shape the 2026 race, though New York's open primary rules and the district's diverse electorate have historically produced unpredictable outcomes. Comparable open-seat Democratic primaries in neighbouring districts have seen turnout fluctuate between 15–25% of registered Democrats, making candidate name recognition and grassroots organisation material factors.

Traders should monitor Nadler's health and retirement intentions, as any announcement would fundamentally alter the race structure. The New York Democratic Party's official calendar typically confirms primary dates by late 2025. Recent reporting from local outlets including Politico New York and the New York Times has tracked potential challengers positioning themselves for 2026, though no major candidate has formally declared. The settlement window closes in mid-June 2026, aligning with New York's standard primary schedule. Any delay to the primary calendar or unexpected procedural changes would affect resolution timing.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets UK, which mirrors the Polymarket order book directly.

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

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'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.

What does it cost to trade on Best Prediction Markets UK?

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

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets 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.