Quick Answer
Nobody. As of September 3, 2026, the market that trades on this question gives its two leaders, Georgia Sen. Jon Ossoff and New York Rep. Alexandria Ocasio-Cortez, about a 17% chance each, with California Gov. Gavin Newsom just behind at 13-14%. That is a three-way scrum at the top and 45 other names sharing the rest. A year and a half before the first primary, the honest answer is that the field is wide open.
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Where Everyone Stands
These are prices from Kalshi, where people buy and sell yes-or-no contracts on real events. A contract on "Ossoff wins the nomination" trading at 17 cents pays $1 if he does, so the price reads directly as the crowd's probability: 17 cents, roughly 17%, about a one-in-six shot.
| Candidate | Chance |
|---|---|
| Jon Ossoff, U.S. Senator (Georgia) | 17% |
| Alexandria Ocasio-Cortez, U.S. Representative (New York) | 17% |
| Gavin Newsom, Governor (California) | 14% |
| Kamala Harris, 2024 nominee | 8% |
| Pete Buttigieg, former Transportation Secretary | 6% |
| Mark Kelly, U.S. Senator (Arizona) | 5% |
| Josh Shapiro, Governor (Pennsylvania) | 5% |
| Andy Beshear, Governor (Kentucky) | 4% |
| Rahm Emanuel, former Chicago mayor | 4% |
| Wes Moore, Governor (Maryland) | 3% |
| Ro Khanna, U.S. Representative (California) | 2% |
| Everyone else (37 names, including J.B. Pritzker, Mark Cuban, Michelle Obama) | 1-2% each |
Kalshi prices as of September 3, 2026, midpoint of the buy and sell price, rounded. They move daily.
What the Market Is Actually Saying
Three things stand out.
There is no frontrunner. At this point before the 2020 cycle, Joe Biden sat well clear of the pack; before 2016, Hillary Clinton was priced like an incumbent. Here the leader is at 17%. Put another way, the market thinks there is an 83% chance the nominee is not Ossoff, and the same for Ocasio-Cortez. Whoever you like, the crowd says you are more likely wrong than right.
The top of the board is an argument about generations. Ossoff is 39. Ocasio-Cortez is 36. Newsom, at 58, is the oldest of the three. Kamala Harris, the party's most recent nominee, is fourth at 8%, and the market has her closer to Pete Buttigieg than to the leaders. Traders are pricing a party that wants to turn the page, and they are split on which direction to turn it: Ossoff as the Sun Belt swing-state pick, Ocasio-Cortez as the pick of the party's left, Newsom as the big-state executive.
Two of the top three have a job to keep first. Ossoff is on the ballot in Georgia this November 3, 2026, in a state Donald Trump carried in 2024. A loss there would end this conversation, and a comfortable win would probably push his price up. Newsom leaves the governor's office in January 2027 and, unlike Ossoff, goes into 2027 with nothing to run but a campaign. Josh Shapiro (5%) is also up for re-election in Pennsylvania in November; a big margin in the most important swing state is the kind of result that has moved this market before.
What Would Change the Picture
Watch three dates. November 3, 2026 is the midterm: Ossoff, Shapiro and Moore all get a verdict, and the market will re-price the same night. January 2027 is when governors' terms and cabinet exits free people up to travel to Iowa and New Hampshire; the first formal announcements tend to follow within months. And the first debate of 2027, whenever the party schedules it, is historically where 15% candidates become 30% candidates, or 5% candidates.
One more thing about a board this flat: small news moves it a lot. A single well-received speech can add three or four points to a name at 5%, and that is exactly the kind of move that shows up on Kalshi before it shows up in a poll.
More on this: Rhode Island Lt. Governor Odds: The Dead Heat Nine Models Reject · NH-01 Primary: Shaheen Fell From Favorite to Coin Flip · Why Ed Markey (D) Will Win the MA Senate Primary · Why Karishma Manzur (D) Will Win the NH Senate Primary · Why Seth Moulton (D) Will Win The Mass. Senate Primary
Bottom Line
If you want a one-name answer, the market does not have one for you yet. It has a three-way tie at the top, Ossoff, Ocasio-Cortez and Newsom, that adds up to less than half the field, and a former nominee it has already moved past. Check back the morning after the November 2026 midterm; that is the first day this board will mean something.
The Republican side of the same question is a different market entirely, and the 2028 presidential election board prices the general election both primaries feed into. Hero illustration: OddsShopper, in the house collage style. Jon Ossoff photo by U.S. Senate Photographic Studio, licensed Public domain; photos cropped, toned, and composited.
Prices are from Kalshi's "2028 Democratic presidential nominee" market, a CFTC-regulated exchange available to adults 18+ in eligible states as of September 2026, captured September 3, 2026. Any figures here are model estimates, not predictions of fact and not financial advice. This page is not advocacy for any candidate or party.
Prices on this page are Kalshi's book. If you also trade on Polymarket, code OS4 gets new users a $50 trading bonus on a $10 deposit — affiliate link; terms as stated by Polymarket; 18+, availability varies by state.
