Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Tax UK Pick polygram.ink |
1% | 99% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Tax UK → |
Polymarket polymarket.com |
1% | 99% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Tax UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Tax UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Tax UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Tax UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Tax UK.
Active sub-markets
| Stephen A. Smith | 1% YES | 99% NO |
| Gretchen Whitmer | 1% YES | 99% NO |
| Oprah Winfrey | 1% YES | 99% NO |
| Person P | — | |
| Person S | — | |
| Person AB | — | |
Market context
The Democratic Party will select its 2028 presidential nominee at its national convention, scheduled for August 2028, ahead of the November general election. This market resolves affirmatively only if the named individual wins the party's nomination vote and formally accepts it; any subsequent replacement before election day does not alter the resolution outcome. The settlement window closes on 7 November 2028, the day of the general election itself.
Historical precedent suggests that 1% implied probability reflects either a candidate with minimal current standing in primary polling or one facing structural barriers to nomination. Since 1980, only one sitting vice president (Joe Biden in 2020) secured the Democratic nomination without a competitive primary, whilst sitting presidents seeking renomination have faced serious challenges (Jimmy Carter in 1980, Bill Clinton's impeachment year notwithstanding). Candidates polling below 5% nationally at this stage rarely recover to nomination viability; conversely, early frontrunners have occasionally collapsed (Howard Dean in 2004). The 2028 field remains fluid given President Biden's age and the absence of an obvious heir apparent, meaning probabilities assigned now carry substantial uncertainty.
Key catalysts include Iowa caucuses and New Hampshire primary results (early 2028), Super Tuesday delegate allocations (March), and any major policy announcements or candidate withdrawals affecting the field's composition. Recent reporting from Reuters and Associated Press indicates ongoing speculation about potential candidates, though no formal campaign infrastructure has crystallised. Regulatory accessibility varies by jurisdiction: UK traders face no specific KYC threshold for this market, whilst US traders under CFTC oversight and German participants subject to GlüStV regulations face different compliance frameworks. No-KYC access up to $1,500 USD on certain platforms applies to aggregate exposure, not individual market positions, affecting how traders structure their participation across multiple election markets.
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 Polymarket Tax 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
- Where can I trade this market with the lowest fees?
- On Polymarket Tax 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.
- Is this market available outside the US?
- Polymarket Tax UK 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.
- 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 Tax UK triggers a quick verification flow that finishes in minutes.
Trade Democratic Presidential Nominee 2028 on Polymarket Tax UK
Live order book, 0% fees, USDC settlement in seconds.
Trade on Polymarket Tax UK →