In Michigan's Republican gubernatorial primary on August 4, 2026, Polymarket traders price self-funded businessman Perry Johnson at 40% and U.S. Rep. John James at 39.5%, capturing recent polls' razor-thin margins amid 44% undecided likely voters. Johnson's late-March surge—closing gaps in Macomb County and winning a Saginaw GOP straw poll—has eroded James' early lead, fueled by self-financing, criticism of James skipping debates, and a $4.7 million post-primary ad buy announced April 7. High undecideds reflect fragmented support in a crowded field; separation could hinge on endorsements, fresh polling, debate performances, or Trump signals before early voting ramps up.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedJohn James 34%
Perry Johnson 29%
Anthony Hudson 6.2%
Joyce Gipson 4.3%
$23,267 Vol.
$23,267 Vol.
John James
40%
Perry Johnson
40%
Anthony Hudson
6%
Joyce Gipson
4%
Aric Nesbitt
4%
Mike Cox
2%
Karla Wagner
2%
Tom Leonard
1%
Evan Space
1%
Ralph Rebandt
1%
William Null
1%
John James 34%
Perry Johnson 29%
Anthony Hudson 6.2%
Joyce Gipson 4.3%
$23,267 Vol.
$23,267 Vol.
John James
40%
Perry Johnson
40%
Anthony Hudson
6%
Joyce Gipson
4%
Aric Nesbitt
4%
Mike Cox
2%
Karla Wagner
2%
Tom Leonard
1%
Evan Space
1%
Ralph Rebandt
1%
William Null
1%
If no 2026 Michigan Gubernatorial Republican Primary takes place, this market will resolve to “Other.”
The resolution source for this market will be the first official announcement of the results from the Michigan Republican Party; however, an overwhelming consensus of credible reporting may suffice.
Market Opened: Dec 10, 2025, 4:20 PM ET
Resolver
0x2F5e3684c...If no 2026 Michigan Gubernatorial Republican Primary takes place, this market will resolve to “Other.”
The resolution source for this market will be the first official announcement of the results from the Michigan Republican Party; however, an overwhelming consensus of credible reporting may suffice.
Resolver
0x2F5e3684c...In Michigan's Republican gubernatorial primary on August 4, 2026, Polymarket traders price self-funded businessman Perry Johnson at 40% and U.S. Rep. John James at 39.5%, capturing recent polls' razor-thin margins amid 44% undecided likely voters. Johnson's late-March surge—closing gaps in Macomb County and winning a Saginaw GOP straw poll—has eroded James' early lead, fueled by self-financing, criticism of James skipping debates, and a $4.7 million post-primary ad buy announced April 7. High undecideds reflect fragmented support in a crowded field; separation could hinge on endorsements, fresh polling, debate performances, or Trump signals before early voting ramps up.
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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