Trump Dominates Michigan G.O.P. Convention Amid Party Turmoil

Former President Donald J. Trump capped off a clean sweep of Republican delegates in Michigan on Saturday during a raucous convention, which further exposed a deep fissure in the state party that threatens to fester in one of the most important battleground states.Mr. Trump, the Republican front-runner, amassed at least 90 percent of the vote in all but one of the state’s 13 congressional districts against former Gov. Nikki Haley of South Carolina, who was ambassador to the United Nations under Mr. Trump.A simple majority was needed in each district to win its share of delegates at the…