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Politics·Senate Races

Will Republicans win any Senate or Governor's Election in a Biden-Trump state?

icon for Will Republicans win any Senate or Governor's Election in a Biden-Trump state?
Politics·Senate Races

Will Republicans win any Senate or Governor's Election in a Biden-Trump state?

68% chance
Polymarket
NEW
68% chance
Polymarket
NEW
This market will resolve to "Yes" if, in the 2026 midterm elections, Republicans win a gubernatorial or US Senate election in any state that was won by Donald Trump in the 2024 US presidential election but was not won by Donald Trump in the 2020 election. Otherwise, this market will resolve to "No". All Gubernatorial elections, and all regular and special Senate elections that determine representation in the upcoming 120th Congress, and are scheduled to take place in November 2026 as of October 31, 2026 are included. Runoffs for qualifying elections will determine attribution of the winner, even if they take place after November 2026. Vacant offices for which no election or special election to fill the office is scheduled to take place in November 2026 as of October 31, 2026 will not be considered. Seats are attributed to the party under which the member or governor was elected. If a member-elect or governor changes party affiliation, or vacates their office, after election day, the seat is attributed to the party under which the person was elected. Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party will be attributed to that party. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards any party. For purposes of this market, the relevant states won by Donald Trump in 2024 but not in 2020 are Wisconsin, Michigan, Pennsylvania, Georgia, Nevada, and Arizona. No other states will be considered for purposes of this market, and no disputes of any state result from 2020 or 2024 will be considered relevant. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.Republicans hold structural edges in several 2026 Senate and gubernatorial contests within states carried by Biden in 2020 and Trump in 2024, such as Michigan and Georgia, where Democrats defend vulnerable seats amid an overall map favoring the GOP. Open Democratic Senate races in these states, combined with term-limited or competitive governor contests across the broader set of battlegrounds, contribute to trader consensus on at least one Republican victory. Recent primaries have highlighted establishment candidates advancing in key states, while historical midterm dynamics and narrow 2024 presidential margins continue to shape assessments of turnout and candidate strength heading into November.

This market will resolve to "Yes" if, in the 2026 midterm elections, Republicans win a gubernatorial or US Senate election in any state that was won by Donald Trump in the 2024 US presidential election but was not won by Donald Trump in the 2020 election. Otherwise, this market will resolve to "No".

All Gubernatorial elections, and all regular and special Senate elections that determine representation in the upcoming 120th Congress, and are scheduled to take place in November 2026 as of October 31, 2026 are included. Runoffs for qualifying elections will determine attribution of the winner, even if they take place after November 2026.

Vacant offices for which no election or special election to fill the office is scheduled to take place in November 2026 as of October 31, 2026 will not be considered.

Seats are attributed to the party under which the member or governor was elected. If a member-elect or governor changes party affiliation, or vacates their office, after election day, the seat is attributed to the party under which the person was elected.

Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party will be attributed to that party. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards any party.

For purposes of this market, the relevant states won by Donald Trump in 2024 but not in 2020 are Wisconsin, Michigan, Pennsylvania, Georgia, Nevada, and Arizona. No other states will be considered for purposes of this market, and no disputes of any state result from 2020 or 2024 will be considered relevant.

The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Volume
$6,897
End Date
Nov 3, 2026
Market Opened
May 27, 2026, 11:20 AM ET

Resolver

0x65070BE91...
This market will resolve to "Yes" if, in the 2026 midterm elections, Republicans win a gubernatorial or US Senate election in any state that was won by Donald Trump in the 2024 US presidential election but was not won by Donald Trump in the 2020 election. Otherwise, this market will resolve to "No". All Gubernatorial elections, and all regular and special Senate elections that determine representation in the upcoming 120th Congress, and are scheduled to take place in November 2026 as of October 31, 2026 are included. Runoffs for qualifying elections will determine attribution of the winner, even if they take place after November 2026. Vacant offices for which no election or special election to fill the office is scheduled to take place in November 2026 as of October 31, 2026 will not be considered. Seats are attributed to the party under which the member or governor was elected. If a member-elect or governor changes party affiliation, or vacates their office, after election day, the seat is attributed to the party under which the person was elected. Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party will be attributed to that party. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards any party. For purposes of this market, the relevant states won by Donald Trump in 2024 but not in 2020 are Wisconsin, Michigan, Pennsylvania, Georgia, Nevada, and Arizona. No other states will be considered for purposes of this market, and no disputes of any state result from 2020 or 2024 will be considered relevant. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
This market will resolve to "Yes" if, in the 2026 midterm elections, Republicans win a gubernatorial or US Senate election in any state that was won by Donald Trump in the 2024 US presidential election but was not won by Donald Trump in the 2020 election. Otherwise, this market will resolve to "No". All Gubernatorial elections, and all regular and special Senate elections that determine representation in the upcoming 120th Congress, and are scheduled to take place in November 2026 as of October 31, 2026 are included. Runoffs for qualifying elections will determine attribution of the winner, even if they take place after November 2026. Vacant offices for which no election or special election to fill the office is scheduled to take place in November 2026 as of October 31, 2026 will not be considered. Seats are attributed to the party under which the member or governor was elected. If a member-elect or governor changes party affiliation, or vacates their office, after election day, the seat is attributed to the party under which the person was elected. Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party will be attributed to that party. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards any party. For purposes of this market, the relevant states won by Donald Trump in 2024 but not in 2020 are Wisconsin, Michigan, Pennsylvania, Georgia, Nevada, and Arizona. No other states will be considered for purposes of this market, and no disputes of any state result from 2020 or 2024 will be considered relevant. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.Republicans hold structural edges in several 2026 Senate and gubernatorial contests within states carried by Biden in 2020 and Trump in 2024, such as Michigan and Georgia, where Democrats defend vulnerable seats amid an overall map favoring the GOP. Open Democratic Senate races in these states, combined with term-limited or competitive governor contests across the broader set of battlegrounds, contribute to trader consensus on at least one Republican victory. Recent primaries have highlighted establishment candidates advancing in key states, while historical midterm dynamics and narrow 2024 presidential margins continue to shape assessments of turnout and candidate strength heading into November.

This market will resolve to "Yes" if, in the 2026 midterm elections, Republicans win a gubernatorial or US Senate election in any state that was won by Donald Trump in the 2024 US presidential election but was not won by Donald Trump in the 2020 election. Otherwise, this market will resolve to "No".

All Gubernatorial elections, and all regular and special Senate elections that determine representation in the upcoming 120th Congress, and are scheduled to take place in November 2026 as of October 31, 2026 are included. Runoffs for qualifying elections will determine attribution of the winner, even if they take place after November 2026.

Vacant offices for which no election or special election to fill the office is scheduled to take place in November 2026 as of October 31, 2026 will not be considered.

Seats are attributed to the party under which the member or governor was elected. If a member-elect or governor changes party affiliation, or vacates their office, after election day, the seat is attributed to the party under which the person was elected.

Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party will be attributed to that party. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards any party.

For purposes of this market, the relevant states won by Donald Trump in 2024 but not in 2020 are Wisconsin, Michigan, Pennsylvania, Georgia, Nevada, and Arizona. No other states will be considered for purposes of this market, and no disputes of any state result from 2020 or 2024 will be considered relevant.

The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.
Volume
$6,897
End Date
Nov 3, 2026
Market Opened
May 27, 2026, 11:20 AM ET

Resolver

0x65070BE91...
This market will resolve to "Yes" if, in the 2026 midterm elections, Republicans win a gubernatorial or US Senate election in any state that was won by Donald Trump in the 2024 US presidential election but was not won by Donald Trump in the 2020 election. Otherwise, this market will resolve to "No". All Gubernatorial elections, and all regular and special Senate elections that determine representation in the upcoming 120th Congress, and are scheduled to take place in November 2026 as of October 31, 2026 are included. Runoffs for qualifying elections will determine attribution of the winner, even if they take place after November 2026. Vacant offices for which no election or special election to fill the office is scheduled to take place in November 2026 as of October 31, 2026 will not be considered. Seats are attributed to the party under which the member or governor was elected. If a member-elect or governor changes party affiliation, or vacates their office, after election day, the seat is attributed to the party under which the person was elected. Senate members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party will be attributed to that party. If the caucus decisions of members of the Senate elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards any party. For purposes of this market, the relevant states won by Donald Trump in 2024 but not in 2020 are Wisconsin, Michigan, Pennsylvania, Georgia, Nevada, and Arizona. No other states will be considered for purposes of this market, and no disputes of any state result from 2020 or 2024 will be considered relevant. The resolution sources for this market will be official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting.

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Frequently Asked Questions

"Will Republicans win any Senate or Governor's Election in a Biden-Trump state?" is a prediction market on Polymarket where traders buy and sell "Yes" or "No" shares based on whether they believe this event will happen. The current crowd-sourced probability is 68% for "Yes." For example, if "Yes" is priced at 68¢, the market collectively assigns a 68% chance that this event will occur. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Will Republicans win any Senate or Governor's Election in a Biden-Trump state?" is a newly created market on Polymarket, launched on May 27, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Will Republicans win any Senate or Governor's Election in a Biden-Trump state?," simply choose whether you believe the answer is "Yes" or "No." Each side has a current price that reflects the market's implied probability. Enter your amount and click "Trade." If you buy "Yes" shares and the outcome resolves as "Yes," each share pays out $1. If it resolves as "No," your "Yes" shares pay $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current probability for "Will Republicans win any Senate or Governor's Election in a Biden-Trump state?" is 68% for "Yes." This means the Polymarket crowd currently believes there is a 68% chance that this event will occur. These odds update in real-time based on actual trades, providing a continuously updated signal of what the market expects to happen.

The resolution rules for "Will Republicans win any Senate or Governor's Election in a Biden-Trump state?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.