SOUTH HAVEN, Mich. (AP) — U.S. Rep. Haley Stevens is spending the closing weeks of Michigan’s Democratic Senate primary making a simple case: she’s the candidate who wins.Stevens flipped a Republican-held House seat in suburban Detroit in 2018 and hasn’t lost since, including surviving a bruising primary against a fellow Democratic incumbent after redistricting in 2022. She says it’s what sets her apart from her opponent in the Aug. 4 primary, progressive Abdul El-Sayed. “It is not a hypothetical that I beat Republicans,” Stevens told The Associated Press after a campaign stop in West Michigan this week. “I win tough races. I have had Republicans throw everything at me and still managed to win.”Holding Michigan’s Senate seat is essential to any Democratic path back to the Senate majority this fall. That imperative only grew this week after Democrats’ nominee in Maine, Graham Platner, said he planned to drop out after he was accused of sexual assault, threatening another seat the party had hoped to keep competitive. While no Republican has won a U.S. Senate seat in Michigan since 1994, former U.S. Rep. Mike Rogers came within 20,000 votes of doing so in 2024. That calculation has led Senate Democratic leader Chuck Schumer and influential Michigan Democrats, including former Sen. Debbie Stabenow, to rally behind Stevens, arguing she gives Democrats their strongest chance in November against Rogers, who is running again.