https://www.bbc.com/news/world-us-canada-47283737 US President Donald Trump has issued an angry response after a TV interview on Sunday alleged that officials had held discussions to have him removed. Mr Trump tweeted of "illegal and treasonous" behaviour and an "illegal coup attempt". In the interview, ex-acting FBI chief Andrew McCabe said talks had been held in 2017 about invoking a clause that can remove a president deemed unfit. The Senate Judiciary Committee chairman has vowed to investigate the claims. Lindsey Graham said the claims were an "attempted bureaucratic coup". The White House revolving door: Who's gone? Mr McCabe said Deputy Attorney General Rod Rosenstein had held discussions on the number of cabinet members and others needed to invoke the clause, the 25th Amendment of the US Constitution. How has Mr Trump responded to the claims? In a series of tweets on Monday morning, he condemned "so many lies by now disgraced acting FBI Director Andrew McCabe. He was fired for lying and now his story gets even more deranged. "He and Rod Rosenstein, who was hired by [then Attorney General] Jeff Sessions (another beauty), look like they were planning a very illegal act, and got caught." Mr Trump added: "There is a lot of explaining to do to the millions of people who had just elected a president who they really like and who has done a great job for them with the military. Vets. Economy and so much more. This was the illegal and treasonous 'insurance policy' in full action!" The president quoted a comment on the Fox and Friends programme saying this was "an illegal coup attempt", adding "True!" The White House said Mr McCabe, who was fired last year for allegedly lying to government investigators, had "no credibility". The justice department said Mr McCabe's account was "inaccurate and factually incorrect". What's the background to this? Allegations that Mr Rosenstein discussed invoking the 25th Amendment were first reported last year by the New York Times. However, Mr McCabe's quotes are the first to be made on the record from someone present at the meeting where the alleged comments were reportedly made - in May 2017, after Mr Trump fired FBI director James Comey. "The discussion of the 25th Amendment was simply [that] Rod raised the issue and discussed it with me in the context of thinking about how many other cabinet officials might support such an effort," he said. Mr McCabe also said Mr Rosenstein was openly "counting votes, or possible votes" and that he was "very concerned" about the president "his capacity and about his intent at that point in time." "To be fair, it was an unbelievably stressful time... it was really something that he kind of threw out in a very frenzied chaotic conversation." Mr Rosenstein has previously strongly denied having such discussions, saying there was "no basis" to invoking the amendment. What else did Mr McCabe say? In the 60 Minutes interview, aired on Sunday, Mr McCabe also covered allegations Mr Rosenstein had offered to secretly record Mr Trump, amid concerns about possible obstruction of justice relating to the investigation into alleged collusion between the president's campaign team and Russia.