Five states are holding primary elections today, with Michigan drawing national attention for its potential impact on both parties. The state's U.S. Senate race is an early test of party strength and internal ideological division.

The Democratic primary pits Rep. Haley Stevens against progressive Nasser El-Sayed. The winner faces Republican former Rep. Mike Rogers in the November general election.

Stevens has locked up the establishment lane. Senate Minority Leader Chuck Schumer, Michigan Gov. Gretchen Whitmer and state Attorney General Dana Nessel have all endorsed her.

El-Sayed has the left. Sens. Bernie Sanders and Elizabeth Warren have both backed him, citing his progressive priorities.

The United States' relationship with Israel has emerged as a defining fault line between the two candidates, a clear differentiator for Democratic primary voters.

On the Republican side, Rogers has President Trump's endorsement. Trump, who defeated former Vice President Kamala Harris in Michigan in 2024, called Rogers an "America First Patriot."

Recent polling shows a split picture. An EPIC-MRA poll conducted July 24-31 among 600 likely Michigan general election voters found Rogers defeating El-Sayed in a head-to-head matchup — but losing to Stevens. The results suggest Stevens is the stronger general election candidate against Rogers.

Michigan is a must-win state in November and is expected to be among the first six states to vote in the 2028 Democratic nominating calendar. How the party's establishment and progressive wings consolidate behind whoever wins tonight will go a long way toward determining whether Democrats can take back a seat they need.