LANSING, Mich. — Abdul El-Sayed secured the Democratic nomination for U.S. Senate in Michigan, defeating Rep. Haley Stevens in a primary that exposed deep fault lines between the party's progressive base and its Washington leadership.

El-Sayed, a former Michigan health official and child of Egyptian immigrants, ran on a progressive platform championing government-sponsored health insurance, lower drug costs, higher taxes on the wealthy and campaign finance reform. Sens. Bernie Sanders and Elizabeth Warren, along with Rep. Alexandria Ocasio-Cortez, backed his campaign.

Stevens, a four-term congressional moderate, held the support of Democratic leadership in Washington. She received $32 million from the American Israel Public Affairs Committee and outside groups that outspent El-Sayed's campaign nine-to-one.

Despite the financial disparity, El-Sayed proved a sharper debater and campaigner, driving his core message — "money out of politics, money in your pocket" — through a primary that polls had suggested he would lose more decisively.

The win sets up a general election contest against former Republican Rep. Mike Rogers, who ran unopposed in the Republican primary. The race is a direct test of whether a left-wing candidate can win statewide in a key battleground.

El-Sayed's primary base consisted largely of college-educated liberals. To win in November, he must bring in lower-income voters in Detroit and rural areas that favored Stevens.

The stakes are high for Senate Democrats. A loss to Rogers would damage the party's bid to retake the Senate — and Republicans have not won a Michigan Senate race since 1994. A victory for El-Sayed would validate progressive candidates in general elections and could influence how the party approaches the 2028 presidential primary, in which Michigan votes early.

El-Sayed's win was not the only sign of a leftward shift in Tuesday's Michigan primaries. Democratic Socialist Donavan McKinney defeated incumbent Rep. Shri Thanedar, who had openly supported continued U.S. aid to Israel.

In another Michigan House district, William Lawrence, who advocates an immediate end to U.S. arms sales to Israel, won his primary over two centrist Democrats.