Michigan's open U.S. Senate and gubernatorial races remain highly competitive heading into November, with recent post-primary polling showing Abdul El-Sayed holding a narrow edge over Mike Rogers in the Senate contest while Jocelyn Benson maintains a clearer lead over John James for governor. The Democratic primary results consolidated nominees quickly after August 4 voting, but the Senate matchup's consistent toss-up status—driven by shifting independent and suburban support—has kept combined sweep probabilities from rising sharply. Benson's stronger polling position in the open governor's race, reflecting advantages in base consolidation and key demographic groups, supports the leading market outcome for a Democratic sweep, yet persistent closeness in both contests leaves room for splits or Republican gains if turnout or late developments favor one party.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedDems sweep 59%
Dems win Gov, Reps win Senate 32%
Reps sweep 11%
Reps win Gov, Dems win Senate 2.1%
Dems sweep
59%
Dems win Gov, Reps win Senate
32%
Reps sweep
11%
Reps win Gov, Dems win Senate
2%
Dems sweep 59%
Dems win Gov, Reps win Senate 32%
Reps sweep 11%
Reps win Gov, Dems win Senate 2.1%
Dems sweep
59%
Dems win Gov, Reps win Senate
32%
Reps sweep
11%
Reps win Gov, Dems win Senate
2%
A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other".
For purposes of this market, a "sweep" is when a party wins both races.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Market Opened: Aug 11, 2026, 11:08 AM ET
Resolver
0x69c47De9D...A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other".
For purposes of this market, a "sweep" is when a party wins both races.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Resolver
0x69c47De9D...Michigan's open U.S. Senate and gubernatorial races remain highly competitive heading into November, with recent post-primary polling showing Abdul El-Sayed holding a narrow edge over Mike Rogers in the Senate contest while Jocelyn Benson maintains a clearer lead over John James for governor. The Democratic primary results consolidated nominees quickly after August 4 voting, but the Senate matchup's consistent toss-up status—driven by shifting independent and suburban support—has kept combined sweep probabilities from rising sharply. Benson's stronger polling position in the open governor's race, reflecting advantages in base consolidation and key demographic groups, supports the leading market outcome for a Democratic sweep, yet persistent closeness in both contests leaves room for splits or Republican gains if turnout or late developments favor one party.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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