Transcript for Trump blasts Democrats over Kavanaugh investigation

A lot more of that coming up. The latest on the supreme court confirmation battle. President trump has authorized the FBI to expand the investigation into nominee Brett Kavanaugh saying he wants to be comprehensive and finish this week. But the president also saying he stands by his nominee, quote, all the way. Our senior white house correspondent Cecilia Vega asked the president about this and joins us now from Washington. Good morning. Reporter: Hi, robin. It was quite a day here at the white house yesterday. That combative press conference in the rose garden, the president standing by his nominee as you say, but he also reversed course on his initial order. He now says the FBI can speak to anyone they want to but this investigation has to be wrapped up by Friday. Overnight at a Tennessee rally president trump blasting Democrats for trying anything to destroy his supreme court nominee. Democrats are willing to do anything and to hurt anyone to get their way like they're doing with judge Kavanaugh. Reporter: Earlier in a rose garden news conference the president was combative. You've really had enough. Hey, you've had enough. Reporter: Shutting down reporters who asked about judge Kavanaugh Brett Kavanaugh. Quon, yeah, go ahead. Sure. She's shocked that I picked her. Like in a state of shock. I'm not thinking, Mr. President. You're not thinking. You never do. I'm sorry. Go ahead. Reporter: In a tweet, you said it's incorrect to say you're limiting the scope of the FBI investigation. What does that have to do with -- I don't mind answering the question but I'd like to do -- It has to do with the other headline. How about talking about today and then we'll do that later. Reporter: Eventually he answered the question. In a tweet this weekend you said it's incorrect to say that you're limiting the scope of the FBI investigation into judge Kavanaugh. But your own statement on Friday made it very clear you said this investigation must be limited in scope. So, which is it? Well, no, I didn't say anything -- what I said is let the senate decide whatever they want to do is okay with me. And also the FBI. I think the FBI should do what they have to do to get to the answer. Are you saying your white house has put no limitations -- No, my white house is doing whatever the senators want. Who they should interview -- You don't understand what I'm saying. My white house will do whatever the senators want. I'm open to whatever they want. Reporter: The president was reminded it is his decision. It is up to me. It is up to me but I'm instructing them as per what I feel the senate wants. Reporter: He was also pressed about Kavanaugh's drinking. I liked beer. I still like beer. There are now concerns he may have lied or mischaracterized his drinking while testifying. If they find that he did, do you think that bars him from being your supreme court nominee. Well, I've watched him. I was surprised at how vocal he was about the fact that he likes beer, and he's had a little bit of difficulty, I talked about things that happened when he drank. The interesting thing is, though, nobody asked him about what's happened in the last 25, 30 years during his professional career because there were no bad reports. I'm not a drinker. I can honestly say I never had a beer in my life, okay. Right. It's one 6 my only good traits. I don't drink. Whatever they're looking for something good, I've never had ray glass of alcohol. For whatever reason. Can you imagine if I had, what a mess I'd be. Would I be -- I'd be the world's worst but I never drank. I never drank, okay. It was quite a moment in the rose garden here yesterday. As for that FBI investigation, the president says that he'd be fine with investigators interviewing all three accusers and judge Kavanaugh himself but, again, this investigation needs to be wrapped by the end of this week and senate majority leader Mitch Mcconnell says he plans to call a vote by the end of this week. Cecilia, you handled that encounter with such professionalism. What the president said, I know you're not thinking but the official white house transcript this morning has changed that. They say he said I know you're not thanking -- A bit of a head scratcher. Everyone else in the world seems to have heard it pretty clearly. This is what the transcript says. I know you're thanking. You never do. That's the words they are now attributing to the president of the United States in the official record he said we heard it, we know you're not thinking. You never do. We've asked the white house about this discrepancy multiple time, guys. No response. Okay. What can you say, George? I mean, really. You have to handle it the way she did yesterday. The best way to do it. The best way.

This transcript has been automatically generated and may not be 100% accurate.