The competitive U.S. Senate race between Democrat Abdul El-Sayed and Republican Mike Rogers, an open seat after Gary Peters’ retirement, has anchored trader expectations for Michigan turnout near 4.6-5 million ballots. A Democratic primary that drew record participation exceeding 2.5 million voters, combined with pre-election polling showing a narrow contest, energized both parties’ bases and independents amid economic pressures on manufacturing. Expanded early and absentee voting options produced over 750,000 early in-person ballots and high mail participation, while same-day registration added thousands more on Election Day. Michigan’s historical midterm engagement patterns, absent major weather or procedural disruptions, support moderate-to-high participation without clear drivers for extremes, keeping the 4.6M-4.8M and 4.8M-5M buckets closely matched ahead of final certification.