Attorney Michael Avenatti revealed the identity of the third woman to accuse Judge Brett Kavanaugh, President Donald Trump's Supreme Court nominee, of sexual misconduct.

She is Julie Swetnick, a resident of Washington, DC.

Swetnick alleges that Kavanaugh and his friend Mark Judge were present when she was "gang-raped" in the early 1980s.

Attorney Michael Avenatti on Wednesday revealed the identity of the third woman to accuse Judge Brett Kavanaugh, President Donald Trump's Supreme Court nominee, of sexual misconduct, as Julie Swetnick, a resident of Washington, DC.

Swetnick signed a sworn declaration in which she alleged, among other things, that Kavanaugh and his friend Mark Judge were present when she was "gang-raped" at a party in 1982. She said she shared details of the incident with two additional people shortly after the sexual assault took place.

In a statement released by the White House, Kavanaugh said the allegations were "ridiculous and from the Twilight Zone."

"I don’t know who this is and this never happened," he said.

According to Swetnick's sworn declaration, tweeted by Avenatti minutes before he posted a photo of Swetnick, the accuser said she first met Kavanaugh and Judge at a Washington, DC-area house party sometime between 1980 and 1981.

Swetnick said that between 1981 and 1983 she attended "well over 10 house parties" at which Kavanaugh and Judge were present. She said she witnessed both men "drink excessively and engage in highly inappropriate conduct, including being overly aggressive with girls and not taking 'no' for an answer."

Swetnick's allegations include claims that Kavanaugh and Judge tried to "spike" drinks with drugs or liquor that was particularly high in alcohol content to "cause girls to lose their inhibitions and their ability to say 'no.'"

She claims she witnessed Kavanaugh and Judge do this so women could be "gang-raped" by a "train" of boys that, she says, included Kavanaugh and Judge.

"I have a firm recollection of seeing boys lined up outside rooms at many of these parties waiting for their 'turn' with a girl inside the room," she said.

Brett Kavanaugh. Win McNamee/Getty Images

Swetnick said she was raped in 1982, claiming she was "incapacitated without my consent and unable to fight off the boys raping me." She said she believed she was drugged using quaaludes, a sedative.

Swetnick said she was aware of other witnesses who could attest to the truthfulness of her entire declaration.

Swetnick said she witnessed Kavanaugh engage in "abusive and physically aggressive behavior toward girls, including pressing girls against him without their consent, 'grinding' against girls, and attempting to remove or shift girls' clothing to expose private body parts."

Pointing to Kavanaugh's comment from a Fox News interview earlier this week during which he said he was a virgin for "many years after" high school, Swetnick said the claim was "absolutely false and a lie," adding that she witnessed the judge "consistently engage in excessive drinking and inappropriate contact of a sexual nature with women during the early 1980s."

Though there was little information on Swetnick available online before Avenatti's tweet, her declaration, which Avenatti said he provided to the Senate Judiciary Committee, was sworn under penalty of perjury. Swetnick said she holds multiple active US-government security clearances. Experts said that making false statements on such a document would be a "career-ender" for her.

Swetnick becomes the 3rd woman to publicly accuse Kavanaugh of sexual misconduct

The first was Christine Blasey Ford, a professor who alleged that, while in high school, Kavanaugh pinned her down and put his hand over her mouth, groping her while his friend watched.

Ford is testifying before the Senate Judiciary Committee on Thursday morning.

On Sunday, The New Yorker published the account of a second accuser, Deborah Ramirez, a former Yale University classmate of Kavanaugh. She alleged that Kavanaugh exposed himself to her at a dorm-room party during the 1983-4 school year when he was a freshman at the university. Ramirez was initially reluctant to come forward because she said there were gaps in her memory.

Regarding Ford's allegation, Kavanaugh said it was "completely false." Responding to Ramirez, Kavanaugh said the "alleged event from 35 years ago did not happen."

Avenatti first revealed he'd had a client making such claims after The New Yorker published its story on Ramirez Sunday night. The lawyer, who also represents adult-film actress Stormy Daniels in her battle with Trump over a nondisclosure agreement, was faced with skepticism initially. On Tuesday, Avenatti disputed an online rumor that he had been "scammed."

Democrats, meanwhile, were cautious in discussing Avenatti's client before his Wednesday revelation.

A Senate Judiciary Committee source told CNN that the committee responded to Avenatti and investigators "immediately started looking" into Swetnick's allegations. The committee also asked if she was willing to speak with investigators, CNN reported.

Read Swetnick's full declaration: