Trump Tries to Court Blue-Collar Workers at a Nonunion Factory

Seeking more of the voters who paved his way to the White House in 2016, former President Donald J. Trump rallied at a Michigan auto parts factory on Wednesday night, vying for the support of blue-collar workers one day after President Biden appeared on a picket line with striking United Automobile Workers.

Mr. Biden on Tuesday affirmed his support for U.A.W. strikers’ demands for a 40 percent pay raise. In his appearance at a nonunion factory on Wednesday, Mr. Trump repeatedly asked for the endorsement of the U.A.W. president, Shawn Fain — calling him “Shawn” — but did not back any of the union’s contract demands.