Price unavailable — showing last known.
U.S. Representative Alexandria Ocasio-Cortez of New York and California Governor Gavin Newsom sit even near 17% on Kalshi’s 2028 Democratic nominee market — after months when Newsom held the top alone. Former Vice President Kamala Harris still leads early primary polls by a wide margin, and neither Ocasio-Cortez nor Newsom has announced a presidential campaign.
You’re betting on who becomes the Democratic Party’s presidential nominee for 2028. After a nominee is chosen and accepts, only that person’s side gets paid. The other sides lose.
| Your bet | Chance | Wins if… | $100 bet pays |
|---|---|---|---|
| Alexandria Ocasio-Cortez | 17% | she wins and accepts the Democratic nomination for 2028 | ~$555 |
| Gavin Newsom | 17% | he wins and accepts the Democratic nomination for 2028 | ~$555 |
| Jon Ossoff | 14% | he wins and accepts the Democratic nomination for 2028 | ~$673 |
| Kamala Harris | 9.5% | she wins and accepts the Democratic nomination for 2028 | ~$989 |
| Pete Buttigieg | 5.5% | he wins and accepts the Democratic nomination for 2028 | ~$1,705 |
| Mark Kelly | 5.5% | he wins and accepts the Democratic nomination for 2028 | ~$1,705 |
Other named Democrats in this market sit below 5% each. New names can still be added before the nomination is settled.
Kalshi confirms the winner from official Democratic Party sources once a nominee wins and accepts.
The case for Alexandria Ocasio-Cortez. U.S. Representative Alexandria Ocasio-Cortez of New York is the progressive voice traders have been buying into. Over the past week her Kalshi chance rose from 13% to 17%, and her contract did about $149K of volume in the last day — more than three times the volume on Newsom’s contract. On Polymarket this week she briefly led the Democratic nominee board for the first time, with The Independent putting her near 21% there. She has not announced a presidential run; she told The Independent her focus is the midterms. That is the Ocasio-Cortez case: a recognizable progressive with rising market money and a first-time lead on at least one major prediction board, still more than a year before anyone needs to declare.
The case for Gavin Newsom. California Governor Gavin Newsom remains tied with Ocasio-Cortez at 17% on Kalshi. He was the clear market favorite earlier this spring — his Kalshi chance peaked near 26% in April 2026 — and he still holds the executive record traders often price into early nomination markets: statewide wins, national cable time, and a long list of Democratic donors who treat California as a fundraising hub. Social posts this week framed a sharper Newsom collapse, from roughly 40% down to 17%; Kalshi’s own history is milder — about nine points off that April high — but the direction is the same. He has not announced a 2028 campaign either. That is the Newsom case at 17%: the California governor who used to lead this market alone, now sharing the top with Ocasio-Cortez after a months-long fade from that April peak.
The case for Jon Ossoff. Georgia’s U.S. Senator Jon Ossoff sits third at 14%, close enough that a few points of buying would put him inside the 17% tie. He is younger than the California governor ahead of him and less defined as a left-wing brand than Ocasio-Cortez. His Senate wins in a swing state give him a different record: a Democrat who has already won tough statewide races in Georgia rather than governing a deep-blue state or representing a progressive New York district. Traders have kept him in the teens on this board. That is the Ossoff case at 14%: a third option if Democrats want neither the progressive lightning rod nor the California governor.
Seventeen percent each means traders see Ocasio-Cortez and Newsom as the two most likely Democratic nominees — and still give about an 83% chance that someone else wins the nomination.
Put the top of the field side by side. Ocasio-Cortez and Newsom are even at 17%. Ossoff is at 14%. Harris is at 9.5%. Pete Buttigieg and Mark Kelly sit near 5.5% each. The two leaders together hold about a third of the board; most of the probability still sits across a long list of other Democrats.
The split with polls is the sharpest fact on this board. A Rasmussen survey of likely Democratic primary voters taken August 2–4, 2026 — reported by Newsweek — put Harris at 37%, Newsom at 14%, and Ocasio-Cortez at 9%. On Kalshi today, Harris is near 9.5% while Ocasio-Cortez and Newsom share 17%. Traders are not copying the poll leader.
3 reasons Ocasio-Cortez and Newsom’s tied 17% chances can still move:
November 3, 2026: U.S. midterm elections. Formal 2028 campaign announcements typically follow in 2027.