Michael Avenatti Responds to Donald Trump: 'You're a Habitual Liar and Complete Narcissist' and 'Disgrace' as President

President Donald Trump attacked attorney Michael Avenatti as a "low-life" who makes "false accusations" on Wednesday after an Avenatti client came forward as the third accuser against Supreme Court nominee Brett Kavanaugh.

Trump said Avenatti had made up accusations against him, an apparent reference to adult film star Stormy Daniels and her claim of a sexual encounter with the president in 2006. It marked the first time Trump had spoken about Avenatti, at least on Twitter.

"Avenatti is a third rate lawyer who is good at making false accusations, like he did on me and like he is now doing on Judge Brett Kavanaugh. He is just looking for attention and doesn't want people to look at his past record and relationships - a total low-life!" the president tweeted.

The president has derided Kavanaugh's accusers and Democrats for obstructing the federal judge's confirmation to the Supreme Court. Trump labeled Democratic lawmakers as "con artists" intent on destroying Kavanaugh's reputation and life.

Avenatti responded to the president by calling him a "habitual liar and complete narcissist."

"'False accusations?' Like those crimes your fixer Cohen pled to? You are an habitual liar and complete narcissist who also is a disgrace as a president and an embarrassment to our nation. You are so inept that your 'best and brightest' are Cohen and Giuliani. Let's go," Avenatti tweeted.

Trump's reaction on Wednesday followed Avenatti's release of a sworn affidavit by client Julie Swetnick, who said Kavanaugh and his friend Mark Judge were present at a high school party where she was drugged and "gang-raped."

"Here is a picture of my client Julie Swetnick. She is courageous, brave and honest. We ask that her privacy and that of her family be respected," Avenatti tweeted while calling for a full investigation by the FBI of Swetnick's allegations.

Kavanaugh responded to the allegation by denying even knowing Swetnick.

"This is ridiculous and from the Twilight Zone. I don't know who this is and this never happened," he said in a statement through the White House.

Kavanaugh is set to appear before the Senate Judiciary Committee on Thursday in response to a claim of sexual assault by Professor Christine Blasey Ford. Ford will appear before Kavanaugh and detail the alleged assault that she has said took place at a high school party in 1982.

Swetnick's accusations followed those made by Deborah Ramirez in a story by The New Yorker. She said Kavanaugh thrust his penis in her face during a party when they were at Yale.

The committee released Kavanaugh's prepared testimony Wednesday, in which he labeled allegations made against him as part of a smear campaign.

"There has been a frenzy to come up with something—anything, no matter how far-fetched or odious—that will block a vote on my nomination," Kavanaugh wrote. "These are last-minute smears, pure and simple. They debase our public discourse. And the consequences extend beyond any one nomination. Such grotesque and obvious character assassination—if allowed to succeed—will dissuade competent and good people of all political persuasions from serving our country."

Michael Avenatti Responds to Donald Trump: 'You're a Habitual Liar and Complete Narcissist' and 'Disgrace' as President | U.S.