President Trump said Monday that those who levied allegations of sexual assault against Supreme Court Justice Brett Kavanaugh are "evil."

"And I will tell you, when I decided on Brett, and we have tremendous talent in our legal system but I decided on Brett. I said he's flawless. A flawless person, the best student, the best scholar, a great intellect, incredible record over many years and yet as a young man," Trump said Monday at an event for the nation's police chiefs. "I say congratulations, this is going to be a piece of cake getting you confirmed. This is going to be so easy. It should go quickly, nicely. Don't even worry."

"He's a great person, and it was very, very unfair what happened to him. False charges, false accusations, horrible statements that were totally untrue that he knew nothing about. Terms that he probably never heard in his life," Trump said of Democratic senators and those who brought the allegations forward. "He never even heard of these terms. It was a disgraceful situation, brought about by people that are evil. And he toughed it out."

Trump will ceremonially swear in Kavanaugh at a prime-time event in the East Room of the White House on Monday evening.

The ceremony follows perhaps the most contentious confirmation battle for a Supreme Court nominee in history and the administration is using Monday evening to show voters they can make good on its promises.

[Top Dem: Trump, GOP must ‘pay a price for Kavanaugh’]

The event caps off a monthslong process that was nearly derailed after the nominee faced several allegations of sexual assault, excessive drinking and aggressive behavior while he was in high school and college.

After an FBI investigation found no corroborating evidence that Kavanaugh was guilty of the charges and after a passionate speech from Sen. Susan Collins, R-Maine, in support of Kavanaugh, senators narrowly voted in favor of his confirmation Saturday evening.

Trump said Monday that many were asking him and Republicans to pull Kavanaugh's nomination in light of the allegations, but that he persisted because Kavanaugh is a "great" man.

"We all toughed it out together and I have to think the Republican senators that fought so hard for this because it wasn't easy. And it was a great honor to be involved in the situation. A lot of people would've said let's give it up, let's go a different direction," Trump said Monday. "We don't give up. You don't give up, we don't give up. Just don't do it. He's going to be a great Supreme Court justice. Watch. A great one. He will be a great one."