Many within the FBI believe Pres. Trump and his allies are engaged in an all-out assault on the very integrity of their institution—and we're seeing rare, if not unprecedented, moves by FBI officials to push back. -@PierreTABC https://t.co/pgAk2JdhV2 pic.twitter.com/Jik4BPdkvg— ABC News Politics (@ABCPolitics) February 5, 2018