The Michigan Republican primary for governor on August 4 remains tightly contested, with trader consensus reflecting the frontrunner status of businessman Perry Johnson and U.S. Rep. John James amid limited polling and recent ballot access resolutions. Both candidates cleared signature challenges in late May when the Board of State Canvassers certified their petitions, while disqualifying others such as Ralph Rebandt. A late-May endorsement from former candidate Tom Leonard bolstered James, yet polls from mid-May showed Johnson and James essentially tied in the low-to-mid 20s with large undecided shares. Other contenders including former Attorney General Mike Cox and Senate Minority Leader Aric Nesbitt trail significantly, keeping the race fluid until voter turnout and further endorsements clarify the outcome.