2028 Democratic Presidential Nominee OddsGavin Newsom narrowly leads Jon Ossoff, 16% to 15%
Kalshi has Gavin Newsom at 15% and Polymarket at 17%. Over the past week on Kalshi, Jon Ossoff gained the most, 2 points to 16%, and Kamala Harris lost 1 point, to 7.1%.
About 1 in 6 Up 1 pt this week (Kalshi)
Average of Kalshi (15%) and Polymarket (17%).
Prices to buy now. $100 on Kalshi at the ask pays $666 if correct, before fees.
About 1 in 7 Up 2 pts this week (Kalshi)
Average of Kalshi (16%) and Polymarket (15%).
Prices to buy now. $100 on Polymarket at the ask pays $653 if correct, before fees.
2028 Democratic presidential nominee
Kalshi: $100K (67%) · Polymarket: $49K (33%)
Kalshi: by Nov 7, 2028 · Polymarket: Nov 7, 2028
Prices to buy each outcome, or the last trade where no one is selling. Some quotes are stale: they weren't observed recently and may have moved. Tap a price to open Kalshi and Polymarket.
Kalshi: OpenPolymarket: Open Average is the mean of each venue's price for the outcome, where it lists one (a quote more than two hours old is left out while another venue's is newer): the midpoint of Kalshi's bid and ask, or its last trade; Polymarket's displayed price, or the midpoint of its bid and ask. Source: Kalshi / Polymarket via DeFi Rate, observed between Oct 25, 8:52 AM and 12:24 PM ET.
The widest gap is on Alexandria Ocasio-Cortez: Kalshi 14% and Polymarket 17%. Our figure is their average.
Over the past week on Kalshi, Jon Ossoff gained the most, 2 points to 16%, and Kamala Harris lost 1 point, to 7.1%.
Source: Kalshi daily close via DeFi Rate, Aug 24 to Oct 24 (UTC days). A day without a close is left out.
Biggest moves, last 7 days
Change in percentage points over 7 days, from daily closing prices to the latest observation (Oct 25, 12:23 PM ET).
Where to trade the 2028 Democratic presidential nomination
Compare election prediction apps for nomination-market coverage, trading costs and account access before choosing a venue. Check that the product available to you lists the specific 2028 Democratic presidential nomination contract, then inspect its available orders and settlement rules. Winning the Democratic nomination and winning the presidential election are separate outcomes, so do not treat their contract prices as interchangeable.
US Election Trading on Kalshi and Polymarket Jumps 153% to $104M Ahead of the Midterms
Talarico Climbs to 66% on Kalshi as Texas Senate Trading Hits $35M
Prediction Markets Trending Heavily Toward Democratic Sweep of House, Senate
Cooper Hits 94.5% on Kalshi as North Carolina Moves Toward a Democratic Senate Pickup