Representative Hakeem Jeffries and former President Barack Obama will aim to give Democrats a financial boost at a time when money is a concern for the party heading into the midterm elections.
The success of progressive candidates in the United States is inspiring leftists abroad struggling under pressure from the Trump administration and its allies.
The president’s pull with the party base has been clear and his resources are vast. But his low approval ratings make him a liability with swing voters.
President Trump campaigning with Representative Mike Lawler of New York in May. Republicans have to weigh Mr. Trump’s approval ratings against his popularity among his base.