WATCH: Graham Vows To Investigate Those Involved In Attempted ‘Coup’ Against Trump

Republican Sen. Lindsey Graham vowed on “Face the Nation” this weekend that he would hold a hearing to investigate former FBI Deputy Director Andrew McCabe’s widely reported claim that high-ranking figures in the Justice Department, particularly Deputy A.G. Rod Rosenstein, had discussed using the 25th Amendment to oust President Trump.

In an interview with “60 Minutes” last week promoting his new book, McCabe said he and Rosenstein seriously discussed potentially orchestrating a coup through the 25th Amendment, which empowers the Cabinet to remove a sitting president if he’s deemed “unable to discharge the powers and duties of his office.” Rosenstein, he said, “offered to wear a wire into the White House” to catch Trump saying something disqualifying, a claim Rosenstein has dismissed as a sarcastic joke. “He was absolutely serious,” McCabe told “60 Minutes.” “And in fact, he brought it up in the next meeting we had. I never actually considered taking him up on the offer. I did discuss it with my general counsel and my leadership team back at the FBI after he brought it up the first time.”