Transcript for Trump says he has written answers to questions from special counsel

Tonight, president trump says he has written answers to Robert Mueller and he has written the answers on his own. And he says he was trying to trick him up. Here is Jonathan Karl. Reporter: President trump said today he has at long last completed written answers to questions from special counsel Robert Mueller. I haven't submitted them yet. I just finished them. Reporter: He insisted, he wrote the answers himself, not his lawyers. My lawyers aren't working on that. I'm working on that. I write the answer. My lawyers don't write answers. I write answers. I was asked a series of questions. I answered them very easily, very easily. I'm sure they're tricked you because you know they like to ask people, gee, was the weather sunny or rainy? He said it may have been a good day. It was rainy therefore he told a lie. Reporter: This eerie surveillance video just released okay, so you have to always be careful when you answer questions for people who probably have bad intentions. Reporter: ABC news has learned the president objected to some of the questions, and over the past 24 hours, he's harshly attacked Mueller and his investigation. "The inner workings of the Mueller investigation are a total mess," he tweeted just yesterday. "They are screaming and shouting at people, horribly threatening them to come up with the answers they want. They are a disgrace to our nation." Reporter: It's unclear what the president was referring to. We asked both the white house and the justice department if he had been briefed by new acting attorney general Matt Whitaker. Neither would answer. You on Twitter yesterday seemed a bit agitated about what you might be perceiving what the Mueller investigation will do. No, I'm not agitated. It's a hoax. The whole thing is a hoax. There was no collusion. Jon Karl live with us tonight from the white house. There is another headline breaking in "The Washington post," they are reporting that the CIA has concluded the Saudi crown prince ordered the assassination on that surveillance in istanbul. Breaking in "The Washington post." If infirmed, it would lead to major questions. If true, this would ramp up the pressure on the trump administration to take a tougher line on Saudi Arabia. As you know, the president has resisted placing blame on the crown prince. He has also made it clear he does not want to see broader sanctions on the Saudi kingdom. David? Jon Karl, thanks to you.

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