Republican Donald Trump appealed to Muslim voters in Michigan on Saturday as Michelle Obama made an impassioned plea on behalf of Kamala Harris at the Democrat’s own rally in the battleground state. In Michigan, Harris and Trump are battling for voters that include an Arab American and Muslim population concerned about Israel’s bombardment of Gaza, and union workers worried about how electric vehicles could reshape the U.S. auto industry, which is headquartered in Detroit, the state’s largest city. Election Day is Nov. 5 but early voting was under way in Michigan, as it is many states.