Abdul El-Sayed sat quietly alongside his wife and Black political leaders in a packed Detroit church Sunday morning, clapping as the congregation sang and the pastor preached. Then he stood before the room and asked for their votes.

U.S. support for Israel is dividing Jewish voters — and reshaping the Democratic Party — ahead of Michigan’s primary on Aug. 4. We traveled to Detroit to meet campaigners on both sides of the issue, and find out how the war in Gaza has shaped their politics,