Kamala Harris wins the 2028 Democratic nomination for U.S. President.
The race for the 2028 U.S. presidential race will establish party leadership. Resolves Yes if Harris is officially nominated and accepts at the 2028 Democratic convention.
Across 6 frontier models answering independently, the panel thinks this is unlikely: the median is 18%.
They broadly agree, 18 points between GPT at 24% and Claude at 6%.
Money disagrees. The market sits at 6%, so the models are 12 points more confident than people with cash on the outcome.
Nothing is settled until 7 Nov 2028, when the outcome is checked against sources and every number above gets a permanent score.
- AI edge
- +12 pts
- Moved this week
- -1 pts
- Since we asked
- -2 pts
- Volume
- $14.2M
The models are clearly more confident than traders risking real money: 18% against 6%.
What each one said
-
GPTOpenAI
Her advantage as the 2024 standard-bearer is real, but an open post-loss primary rarely crowns the prior nominee automatically.
- She must enter, outlast governors and senators in 2027–28 primaries, then win delegate majorities at the convention.
- Since 1968, defeated Democratic presidential nominees have seldom returned to win the next open nomination; Biden is the notable recent exception.
- A decisive 2026–27 national polling lead plus major endorsements from governors and Black Democratic leaders would raise this sharply.
24% -
GeminiGoogle
Failed nominees rarely win renomination in modern primary eras unless the primary field severely fractures behind weaker rivals.
- No defeated general-election Democratic nominee has secured renomination since Adlai Stevenson in 1956.
- A deep bench including Newsom, Whitmer, and Shapiro will mount aggressive 2027 primary bids arguing she lacks broad appeal.
- She retains high universal name recognition and core institutional donor ties, but primary voters will prioritize electability.
22% -
GrokxAI
Harris must run and beat a crowded field of governors after a 2024 loss.
- She has to declare by late 2027 and win early contests or Super Tuesday against Newsom, Whitmer and others.
- Defeated nominees almost never get a second nomination (last was Stevenson 1956); her 2024 loss and low favorability put her below that already-low base.
- A 2026 midterm wipeout that clears rivals or her staying out of 2026 races would most change the odds.
18% -
QwenAlibaba
Harris's 2024 loss and age make a comeback bid unlikely, but she remains the most recent nominee with infrastructure.
- Since 1900, only one losing nominee (Bryan) won a subsequent nomination, and that was 12 years ago in a very different era; modern losers almost never return.
- Harris would be 63 at the convention—viable age-wise—but she lost by a wider margin than expected after a short campaign, and polling shows Democratic primary voters…
- A major shift would be if she maintains strong polling and fundraising through early 2027, signaling institutional backing; without that signal by mid-2027, her odds…
18% -
DeepSeekDeepSeek
Harris needs to reverse a firm post-2024 verdict from the donors, activists and delegates who pick nominees.
- No defeated major-party nominee has won the next open nomination since Nixon in 1968, and Harris lost all seven swing states in 2024.
- The 2028 field is already forming around Newsom, Shapiro, Whitmer and Buttigieg, who lock up donors and early-state staff through 2027.
- She would need to clear Iowa and New Hampshire in early 2028; a strong Harris polling lead by mid-2027 is the one thing that would move me.
12% -
ClaudeAnthropic
Turns on whether Harris runs again and beats a crowded, younger 2028 Democratic field.
- Harris lost in 2024 and has given no clear signal of running again, unlike incumbents who dominate renomination odds.
- Twice-defeated or once-defeated presidential candidates rarely win their party's next nomination; the modern base rate is low.
- Many ambitious Democrats (Newsom, Whitmer, Buttigieg, Shapiro) are positioning for 2028, crowding out a comeback bid.
6%
6 of 6 models answered · 18 points between the highest and lowest. None was shown the market price.
Resolution criteria
This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Democratic Party for U.S. president. Otherwise, this market will resolve to “No”. The resolution source for this market will be a consensus of official Democratic Party sources. Any replacement of the democratic nominee before election day will not change the resolution of the market.
Question sourced from Polymarket on 15 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.