7 min read
2028 presidential election odds

Last updated · market list and volume ranking verified against live Polymarket politics books on August 18, 2026
Quick answer
Key takeaways
- › Polymarket has the deepest 2028 nominee and general-election liquidity; Kalshi is the regulated USD alternative.
- › Nominee markets resolve at the 2028 convention, not on primary polling.
- › DeSantis's term ends January 2027, keeping Florida names on the GOP board.
- › The November 2026 midterms are the next big repricing event.
- › Long-shot nominee contracts are the cheapest way to express a 2028 view.
- › You can exit into news spikes — holding to resolution is optional.
Where to trade 2028 odds
Two venues matter for a Florida trader. Polymarket runs the deepest 2028 books — the Republican and Democratic nominee markets plus the general-election winner — with dozens of names quoted, which is where long-shot pricing actually exists. Kalshi is the CFTC-regulated U.S. exchange: fewer names, USD funding straight from a bank account, and U.S. tax paperwork handled for you.
If you want granularity, Polymarket. If you want a regulated venue and clean records, Kalshi. Plenty of people keep accounts on both and trade whichever quotes the better price on the name they care about.
The three contract types
| Market | What it asks | Resolves |
|---|---|---|
| Republican Nominee 2028 | Who is the GOP's nominee? | 2028 Republican convention |
| Democratic Nominee 2028 | Who is the Democratic nominee? | 2028 Democratic convention |
| Presidential Election Winner 2028 | Who wins the general? | November 2028 result certification |
A useful sanity check: a candidate's general-election price should never exceed their nominee price. When it briefly does — usually after a viral headline — that's an arbitrage, and it closes fast.
The Florida angle
Florida is over-represented on the 2028 Republican board for a structural reason: Ron DeSantis's second term as governor ends in January 2027, which removes the "he's busy running a state" discount that hangs over sitting governors. Traders also read the state's own 2026 races — the governor's race and the Senate contest — as a live read on whether the Florida coalition that produced 2022's margin still holds.
That's why a Florida primary result on August 18, 2026 can move a national 2028 contract by several cents in a day. If you follow Florida politics closely, this board is where that knowledge is worth the most.
What actually moves the board
- November 2026 midterms: the single biggest scheduled repricing. Expect wide swings the week after.
- Formal announcements: a declared campaign usually pulls 5–15¢ from the rest of the field within hours.
- Withdrawals and health news: the fastest moves on the board, and the ones most likely to be over-extrapolated.
- Early-state polling: matters far more from mid-2027 onward than it does today.
- Endorsements from party leadership: strong signal on nominee markets, weak signal on the general.
Read the resolution rules first
Nominee markets pay on the formal nomination — delegate math and primary wins are only evidence, not settlement. The edge cases worth knowing before you size: a contested convention, a candidate withdrawing after clinching, or a third-party run that keeps a name on the general board while removing them from a nominee book. Each venue handles these differently, and the rules tab is the only authority.
How to trade it two years out
Two years is a long hold. The realistic approach is not "pick the winner" but "buy a name the market hasn't priced for a catalyst you can see coming," then sell into the spike rather than waiting for a 2028 convention. Long-shots at 3–6¢ carry asymmetric payoffs precisely because the field isn't set — and a 4¢ contract only needs to reach 8¢ to double.
Size accordingly. Political markets are slow, headline-driven, and capable of sitting flat for months before moving 20¢ in a week. Never put money on the board that you need before November 2028.
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Prediction markets are real-money trading and you can lose your full stake. We recommend 21+. If trading stops feeling fun, call 1-800-GAMBLER or text 988.
Reviewed by Catie Di Stefano. Every guide follows our editorial standards & review methodology. Affiliate links are disclosed under our affiliate disclosure.