“Plaintiffs and Porter Wright have reached a mutual agreement that plaintiffs will be best served if Porter Wright withdraws,” the law firm said in a federal court filing.

The firm’s withdrawal followed an article in The New York Times on Monday described internal tensions at the firm about its work for Mr. Trump’s campaign in Pennsylvania. Some employees said they were concerned that the firm was being used to undercut the integrity of the electoral process. One Porter Wright lawyer resigned in protest over the summer…

Previously, Porter Wright had filed a number of other actions in Pennsylvania courts challenging aspects of the state’s voting process. It isn’t clear if the firm will continue to represent Mr. Trump’s campaign on those cases. A Porter Wright representative didn’t immediately respond to a request for comment on Friday.