DETROIT — Outrage over the war in Gaza has given former President Donald Trump an opening in Michigan as some Arab and Muslim voters vow to “punish” Vice President Kamala Harris at the ballot box.

The “uncommitted” movement, which mobilized 100,000 Michigan voters to protest U.S. foreign policy in the conflict, has splintered since the Democratic primary in February, often to the benefit of Harris. She has made inroads with elected officials and some religious leaders demanding a ceasefire in Gaza.