"The Democratic primary for U.S. Senate in Michigan is now a two-way race—and I just officially endorsed Abdul El-Sayed," Warren said in an email to supporters on Monday. "Abdul is THE fighter Michigan needs in the Senate. Michigan families deserve a senator who will fight for them—not special interests running millions in TV ads to buy this seat."
Joining Sens. Bernie Sanders (I-Vt.) and Chris Van Hollen (D-Md.), Warren is now the third US senator to endorse El-Sayed, who formerly served as Detroit's top public health official and has made Medicare for All a central campaign pitch.
In an endorsement video posted to social media, she emphasized his background as a physician and his longtime union membership.
Noting his support from the state's largest union, the United Auto Workers, she credited El-Sayed with "growing a movement of working people all across Michigan."
Warren, who has long advocated for legislation to end unchecked corporate spending in elections, praised El-Sayed for "not taking corporate money" and "fighting to get money out of politics altogether."
Without naming Stevens, Warren called out the "special interests running millions of dollars in TV ads to buy this seat."
Last week, reports detailed how outside groups had spent roughly $50 million buying ads to support Stevens and bash El-Sayed over the course of the race, with nearly $30 million coming from American Israel Public Affairs Committee (AIPAC) and affiliated groups, who seek to stop another harsh critic of Israel from entering Congress.
Stevens, who has long trumpeted her pro-Israel bona fides, has appeared cagey about acknowledging that AIPAC, whose influence is increasingly loathed by Democratic voters, is her leading financial backer.
Asked whether she welcomed AIPAC's support, she told The Associated Press over the weekend that "anyone who supported me is supporting me because of my dedication to the people of Michigan, and the things that I have done for Michiganders."
The dark money group A Stronger Michigan—which Sludge has found to be connected to a lobbyist for the American Gas Association, Meta, and the military contractor Northrop Grumman—has also been found to have spent more than $12 million in support of Stevens.
She also has the backing of nearly 100 corporate political action committees (PACs), including those representing the health insurance industry, Wall Street Banks, fossil fuels, and Big Tech companies.
El-Sayed has outraised Stevens among small-dollar donors by more than 5-to-1 in the second quarter of 2026, according to Federal Election Commission filings.
Rep. Alexandria Ocasio-Cortez (D-NY), who spent the weekend campaigning for El-Sayed in Michigan, said the race was "an opportunity to show that things other than money can win in America.”
It's unclear whether the flood of spending is actually helping Stevens. Since the Democratic primary became a two-horse race, poll results have been scattered.
A Detroit News/WDIV-TV survey by the Glengariff Group, released July 15, showed that Stevens had surged to a 7-point lead over El-Sayed. But a poll by Data for Progress, sponsored by the group American Priorities, released the same day, showed El-Sayed with a commanding 13-point lead.
Stevens also has the strong support of the Democratic establishment.
Senate Minority Leader Chuck Schumer (D-NY), who had been quietly putting his thumb on the scale to boost Stevens for months, gave an effective endorsement in June, saying she had the best chance to beat Rogers. She's also gained the support of other centrist stalwarts including Sens. Catherine Cortez Masto (D-Nev.), Ruben Gallego (D-Ariz.), and Chris Coons (D-Del.).
Last week, she also grabbed the endorsement of the influential former House Democratic Whip Jim Clyburn (D-SC).
But after a trend of success for progressive and democratic socialist candidates in Democratic primaries across the nation, El-Sayed suggested on Monday that a political outlook closer to his and Warren's is what would win the day.
"Sen. Warren’s vision for our future—one where corporations can’t buy politicians, and people can afford to put food on the table—speaks to Americans everywhere," he said in response to her endorsement.
"She’s been a generational voice for Americans who are tired of the status quo," he said. "Michigan needs unbought, principled leadership, and with Sen. Warren’s support, we can get rid of the chokehold that corporations have on our government."
