Democratic Presidential Nominee 2028

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Active sub-markets

Market context

The market is for the person who will win and accept the Democratic nomination for US president in 2028. At 1% implied probability, the crowd is treating the field as a long-shot away from any settled consensus, which is typical this far out: the party has not yet coalesced, and early favourites can change quickly once debates, fundraising, and state-level voting begin. In past cycles, the eventual nominee was rarely obvious this early, and initial polling leaders often traded at prices that later proved too low when they consolidated institutional support. On that read, the current price sits in clear underdog territory, with value likely tied to whichever contender can translate early name recognition into delegate strength rather than just media attention.

The main catalysts are still ahead: formal candidacy launches, donor calendars, primary schedule changes, and the first sustained polling after the 2026 midterms. Recent coverage has kept Gavin Newsom prominent in trader thinking, with Polymarket noting his lead in assessments and reporting that he has been engaging donors and activists ahead of the midterms; Axios and other outlets have also pointed to Alexandria Ocasio-Cortez as an early poll mover, while Pete Buttigieg and Kamala Harris have both shown strength in hypothetical field surveys. The handicapper’s note here is that the market may be underpricing a candidate who can unify establishment support, but it is also vulnerable to a contrarian re-rating if a progressive or outsider consolidates early momentum.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Democratic Presidential Nominee 2028 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

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 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 does it cost to trade on PolyGram?

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

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, PolyGram triggers a quick verification flow that finishes in minutes.