Democratic Sen. Chris Coons of Delaware endorsed Michigan Rep. Haley Stevens in her Senate campaign Monday, lending his support to the four-term congresswoman less than three months before the Aug. 4 Democratic primary election.
Stevens is one of three candidates seeking the Democratic nomination for Michigan's open Senate seat being vacated by retiring Sen. Gary Peters. The winner will likely face former Rep. Mike Rogers, a Republican who lost to incumbent Elissa Slotkin in 2024 but has remained active in Michigan politics.
What the Right Is Saying
Republicans see opportunity in Michigan's open Senate race regardless of which Democrat emerges from the primary. Rogers, who represented Michigan's 8th Congressional District from 2001 to 2015, has maintained a strong fundraising pace and name recognition across the state.
GOP strategists point to polling showing Rogers competitive against each Democratic candidate. A Glengariff Group survey conducted April 28 through May 1 found Rogers holding narrow leads of 2.3 percent over Stevens and 2.1 percent over McMorrow, both within the 4-point margin of error. Against El-Sayed, Rogers led 44.7 percent to 39.8 percent.
Republican commentators have noted that high-profile Democratic endorsements may not be decisive in a race where nearly four in ten likely Democratic primary voters remain undecided according to recent polling.
What the Left Is Saying
In a video shared by Stevens' campaign, Coons called it his "honor" to endorse her and highlighted her commitment to manufacturing jobs and working families. "I know Haley, I've spent time with her, traveled with her, campaigned with her," Coons said. "She is tough, she's a fighter, she understands the importance of good-paying manufacturing jobs and she'll stand up for Michiganders."
Stevens called Coons a "friend" who is "no stranger to fighting for American manufacturing and protecting working families." She has also received endorsements from Democratic Sens. Catherine Cortez Masto of Nevada, Ruben Gallego of Arizona, and former Michigan Sen. Debbie Stabenow.
State Sen. Mallory McMorrow, another primary candidate, has secured backing from Sens. Martin Heinrich of New Mexico, Chris Murphy of Connecticut, Elizabeth Warren of Massachusetts, and Peter Welch of Vermont. The third contender, Abdul El-Sayed, a former Wayne County health director, is supported by independent Sen. Bernie Sanders of Vermont.
Supporters of Stevens argue her Washington experience makes her the strongest nominee to hold Peters' seat for Democrats. "She is our best chance to keep this seat in Democratic hands," Coons said.
What the Numbers Show
A Mitchell Research and Communications survey from earlier this month provides a snapshot of the Democratic primary race: El-Sayed leads with 28 percent support, followed by Stevens at 18 percent and McMorrow at 17 percent. Approximately 39 percent of likely Democratic primary voters remain undecided.
Campaign finance disclosures as of late March show relatively competitive resources among the Democratic candidates. McMorrow had $3.6 million on hand, Stevens reported $3.3 million, and El-Sayed had more than $2.5 million available, according to Federal Election Commission filings. Rogers' campaign held more than $4.2 million as of late March.
Early voting in the Michigan primary runs from July 25 through Aug. 2, with election day on Aug. 4.
The Bottom Line
Coons' endorsement adds to Stevens' roster of Washington validators but comes amid a tight three-way race where polling shows significant voter uncertainty. The high-profile backing from established Senate Democrats signals that national party figures view the Michigan seat as competitive and worth investing in ahead of November's general election.
The primary outcome will determine whether Democrats nominate a candidate with federal legislative experience or opt for one of two state-level alternatives. Republicans have already launched early attacks against Stevens, suggesting her Washington connections could become a liability in a general election matchup against Rogers. What happens over the next three months of campaigning will likely determine which party's nominee emerges best positioned for November.