Donald J. Trump has fired his contentious campaign manager, Corey Lewandowski, a move that comes as the presumptive Republican nominee faces challenges as he heads into the general election.
Mr. Lewandowski could not immediately be reached for comment about his departure, which was announced by the campaign.
“The Donald J. Trump Campaign for President, which has set a historic record in the Republican primary having received almost 14 million votes, has today announced that Corey Lewandowski will no longer be working with the campaign,” the campaign spokeswoman, Hope Hicks, said in a statement. “The campaign is grateful to Corey for his hard work and dedication and we wish him the best in the future.”
Mr. Trump had faced increasing concerns from allies and donors, as well as his children, about the next phase of the campaign as he pivots toward the November election.
Two people briefed on the move, who spoke on condition of anonymity, said that Mr. Lewandowski was fired.
The campaign manager was seen as having a hostile relationship with many members of the national press corps who cover Mr. Trump, and many officials at the Republican National Committee had strained relationships with him.
Mr. Lewandowski was said to have resisted certain moves that would have increased the staff, at times blocking Mr. Manafort from making hires or later undoing them.
But the people briefed on Mr. Lewandowski’s departure said that the circumstances went well beyond any particular incident or any particular relationship…