F.B.I. Leaders Push to Restore Trust in the Agency They Once Undermined

In recent days, Kash Patel, the F.B.I. director, and Dan Bongino, his deputy, have promised to bring change to what they have called a broken institution.Kash Patel, the F.B.I. director, during a hearing at the Capitol last month. Before ascending to his post, Mr. Patel repeatedly distorted the facts about the bureau’s investigation of Russian meddling into President Trump’s 2016 campaign.