Transcript for Former FBI Director Comey prepares for public testimony

unfolding against the drum beat of controversy at home. Especially the upcoming testimony in front of congress from James Comey, who president trump fired. This, as some Republicans are breaking with the trump administration and looking into a possible connection between the Russians and the trump campaign. Here's Gloria Riviera. Reporter: Tonight, as James Comey prepares to testify publicly, a new glimpse inside that meeting between the president and the Russian foreign minister. President trump's inner circle acknowledging that the subject of the FBI director's firing came up. The firing had been in the news. But I didn't know in advance that the president was gonna raise it. Reporter: That controversial meeting taking place just one day after James Comey was fired. "I just fired the head of the FBI. He was crazy. A real nutjob," trump boasted according to an official summary of the meeting read to "The new York Times" by an American official. "I faced great pressure because of Russia. That's taken off." Speaking today from Saudi Arabia, secretary of state Rex tillerson, who was also in the room that day, pushed back against that account. That's not my, my interpretation, certainly, of the conversation. And I think what the president was trying to convey to the Russians is, look, I'm not going to be distracted by this, all these issues that are here at home, they, that affect us domestically. Reporter: President trump has acknowledged the Russia investigation was on his mind when he fired the man in charge of it, and has called the probe into possible collusion with campaign associates a "Witch hunt." But lawmakers from the president's own party disagree. Well, I wouldn't use the term witch hunt. There's also a lot that we don't know yet. And I want to underscore how good it is for America that Bob Mueller has this position. Reporter: The house oversight committee chairman, Jason Chaffetz, says he will speak to James Comey tomorrow. He says he wants to see the memos Comey wrote for himself.

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