President Trump swept into a sports complex here and declared the first 100 days of his administration a success. “You haven’t even seen anything yet,” said Trump, who stood in front of jumbo screens that read “100 Days of Greatness.

President Donald Trump boasted about his accomplishments, especially on immigration, as he held a rally in Michigan on Tuesday to mark the first 100 days of his second term, staging his largest political event since returning to the White House in a state that has been especially rocked by his steep trade tariffs and combative attitude toward Canada.