Will Republicans lose a seat in the US Senate for any state Trump won in 2024?
🗂 Part of event: Will Republicans lose a seat in the US Senate for any state Trump won in 2024? →💡 What the odds say
The market puts this at about a 87% chance — very likely.
No money — just record your call and see if you were right. Yes is at 87% right now.
The market is pricing a near-certain loss because Trump's intra-party purges and primary defeats are creating open seats in red states, even as Democrats have a narrow but real path to flip one of them.
📊 Base rate: In midterm elections since 2006, the president's party has lost Senate seats in every cycle except 2002 and 2018, with losses in states the president won being a common feature (e.g., Democrats lost four Trump-won Senate seats in 2018).
What's driving it
- • The defeat of Utah Senate President in a primary after a data center backlash (NYT, Jun 24) shows that even safe Republican incumbents can be ousted, creating an open seat that Democrats could target.
- • Trump has already unseated several Republicans in primaries this year (PBS, May 27), weakening the party's incumbency advantage in Trump-won states.
- • Democrats' narrow path to a Senate majority runs through very red states (NYT, Jun 3), meaning they are actively contesting seats in Trump-won territory.
- • A Trump-backed candidate lost in the Iowa governor's race (Guardian, Jun 2), signaling that Trump's endorsement may not guarantee general-election success, which could apply to Senate races.
The case for YES
- • At least one Republican-held seat in a Trump-won state (e.g., Iowa, Utah, or Alaska) is likely to flip due to a combination of incumbent retirement, primary defeat, or a strong Democratic challenger.
- • The Democratic Senatorial Campaign Committee has publicly identified red-state targets; if they invest heavily and national trends favor them, a single pickup is plausible.
- • Historical precedent: in 2020, Democrats flipped Senate seats in Arizona and Georgia (both Trump-won in 2016), showing that such flips occur even in hostile territory.
The case for NO
- • Almost all Trump-won states have heavy Republican lean (e.g., +15 or more), making Democratic victories highly unlikely unless the national environment is strongly anti-Republican.
- • Trump's base remains loyal in general elections; his endorsement can still consolidate GOP voters and prevent a Democratic crossover victory.
- • No current polling or fundraising data shows a Democratic candidate consistently leading in any Trump-won Senate race; the headlines are about primary battles, not general-election vulnerability.
What to watch
- • August 2026 primary elections in states like Kansas, Arkansas, and Mississippi could produce weak Republican nominees, pushing the 'Yes' odds higher.
- • Release of third-quarter fundraising reports in October 2026 will reveal whether Democratic challengers are competitive in red-state races; strong Democratic fundraising would increase 'Yes' probability.
- • General-election polling in October 2026 showing a Democratic lead in any Trump-won state would sharply move the odds toward 'Yes'.
AI-generated · grounded in recent news + odds · informational only, not advice. Verify on the source platform.
Data from Polymarket’s public API, for informational purposes only. PredictPal is not affiliated with any platform and does not facilitate trading.
Discussion
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How it resolves
Settled on-chain by UMA's optimistic oracle: once an outcome is clear, anyone can propose the result, which then enters a challenge window where it can be disputed with evidence before it finalizes.
⚖️ A proposed outcome can be disputed during a challenge window before it's final.
Resolution criteria
The 2026 midterm elections for the US Senate is scheduled to be held on November 3, 2026. This market will resolve to "Yes" if Republicans hold fewer seats in the Senate for any state that Trump won in the 2024 US presidential election as a result of the 2026 midterm elections. Otherwise, this market will resolve to "No". Initial seat counts will be based on the composition of the US Senate as of November 2, 2026, 11:59PM ET. This market's resolution will be solely based on the number of seats held by the Republican Party in the US Senate for any state won by Trump in the 2024 Presidential election. The loss of particular seat will not count towards a resolution for this market; only the total number of seats held by the Republican Party in a given state will be considered. (e.g. The loss of one of a state's seats by the Republican Party followed by the gain of the other seat would not be sufficient to resolve this market to "Yes".) A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 Senate elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the Senate elections are conclusively called by this market's resolution sources. For the purposes of this market, states won by Trump in the 2024 Presidential election include Alabama, Alaska, Arizona, Arkansas, Florida, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Montana, Nebraska, Nevada, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, West Virginia, Wisconsin, and Wyoming. This list is determined by the winner of the electoral votes for each state in the 2024 Presidential election. In states such as Maine and Nebraska, where electoral votes are allocated separately by congressional districts as well as to the statewide winner, only the electoral votes allocated to the statewide winner are considered. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
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