Supreme Court nominee Brett Kavanaugh was hit with the most lurid accusations of sexual misconduct yet as Senate Republicans pressed ahead with plans to hold a Thursday hearing that would let the GOP push him to confirmation as early as next week.

The new accuser said Kavanaugh took part in efforts during high school to get girls intoxicated so that a group of boys could have sex with them. Kavanaugh rejected the latest claim Wednesday as “ridiculous and from the Twilight Zone.”

President Donald Trump attacked the accuser’s lawyer, Michael Avenatti, on Twitter as “a third rate lawyer who is good at making false accusations” and as a “total low-life!” Avenatti also represents Stephanie Clifford, the adult film star known as Stormy Daniels who says she had an affair with Trump before he was elected president.

Republicans have been hoping to win confirmation for Kavanaugh by early next week. Senate Majority Leader Mitch McConnell has been preparing a weekend session to run the procedural clock out, an unusual move reflecting the high stakes and the desire to let GOP senators campaign on Kavanaugh’s confirmation in the November election.

The new accuser, Julie Swetnick of Washington, said Kavanaugh took part in efforts during high school to get girls intoxicated so that a group of boys could have sex with them.

Swetnick said she witnessed efforts by Kavanaugh, his friend Mark Judge and others “to cause girls to become inebriated and disoriented so they could then be ‘gang raped’ in a side room or bedroom by a ‘train’ of numerous boys.”

“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,” Swetnick said in a sworn affidavit released by Avenatti. “These boys included Mark Judge and Brett Kavanaugh,” she added. Judge was a high school classmate of Kavanaugh.

Kavanaugh rejected the latest claim Wednesday in a statement released by the White House, saying, “I don’t know who this is and this never happened.”

Judiciary Chairman Chuck Grassley said Thursday’s hearing will go forward, centering on a claim by California college professor Christine Blasey Ford that Kavanaugh held her down and tried to take her clothes off when they were in high school.

Regarding the new allegation, Grassley said, “we have had accusation after accusation after accusation.” He added, “Obviously with this one we have a contact and our lawyers are on it right now.”

In prepared testimony to the Judiciary Committee, Kavanaugh called allegations against him by the initial accuser, Ford, as “last-minute smears” and “grotesque and obvious character assassination.”

“I categorically and unequivocally deny the allegation against me by Dr. Ford,” Kavanaugh said in the statement. “I have never done that to her or to anyone. I am innocent of this charge.”

“Such grotesque and obvious character assassination — if allowed to succeed — will dissuade competent and good people of all political persuasions from serving our country,” Kavanaugh, Trump’s second high court nominee, said in a statement released ahead of Thursday’s planned Senate Judiciary Committee hearing.

A third woman, Deborah Ramirez, claims Kavanaugh exposed himself to her at a drunken party at Yale University.

The Judiciary hearing is scheduled for 10 a.m. Thursday.

Democratic Sen. Ron Wyden of Oregon said Grassley’s decision to go ahead with the hearing “sends a very powerful statement that women’s voices in America really don’t matter, that the evidence, the facts, all the things that may come to light tomorrow are secondary to just jamming this through.”

A new accuser against Brett Kavanaugh said the Supreme Court nominee took part in efforts during high school to get girls intoxicated so that a group of boys could have sex with them.

“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,” Washington resident Julie Swetnick said in a sworn affidavit released by attorney Michael Avenatti. “These boys included Mark Judge and Brett Kavanaugh,” she added. Judge was a high school classmate of Kavanaugh.

The White House had no immediate comment. The allegation comes one day before Kavanaugh is set to testify at a Senate Judiciary Committee hearing along with another accuser, Christine Blasey Ford, who says Kavanaugh held her down and tried to take her clothes off when they were in high school.

George Hartmann, a spokesman for Republicans on the Judiciary Committee, said the hearing is still going forward Thursday as scheduled. Another committee spokesman, Taylor Foy, said the panel received Swetnick’s declaration Wednesday and “committee lawyers are in the process of reviewing it now.”

Kavanaugh has denied Ford’s accusation as well as another from a former Yale University classmate who said he exposed himself to her at a drunken party. He has said, “I’ve never sexually assaulted anyone in high school or otherwise.”

The new allegation comes one day before Kavanaugh is set to testify at a Senate Judiciary Committee hearing along with another accuser, Christine Blasey Ford, who says Kavanaugh held her down and tried to take her clothes off when they were in high school.

Swetnick said in the affidavit that she saw Kavanaugh, Judge and others seek to cause girls “to become inebriated and disoriented so they could then be ‘gang raped’ in a side room or bedroom by a ‘train’ of numerous boys.”

Swetnick said she was a victim of one of those incidents in the early 1980s and that Kavanaugh and Judge had been present, though she did not say whether they had sex with her. “I believe I was drugged using Quaaludes or something similar placed in what I was drinking,” she said in the statement.

Kavanaugh’s claim during a Fox News interview Monday that he was a virgin until “many years” after high school was “absolutely false and a lie,” Swetnick said. She added, “I witnessed Brett Kavanaugh consistently engage in excessive drinking and inappropriate contact of a sexual nature with women during the early 1980s.”

“I also witnessed Brett Kavanaugh behave as a ‘mean drunk’ on many occasions at these parties,” Swetnick said.

The affidavit said she has clearances to work with multiple federal agencies, including the Treasury Department.

Republicans have been hoping to win confirmation for Kavanaugh by early next week. Senate Majority Leader Mitch McConnell has been preparing a weekend session to run the procedural clock out, an unusual move reflecting the high stakes and the desire to let GOP senators campaign on Kavanaugh’s confirmation in the November election.

Republicans hold a 51-49 advantage in the Senate and can’t afford more than one defection to ensure confirmation without Democratic support.

Swetnick is the third woman to come forward with allegations of sexual misconduct by Kavanaugh. The New Yorker magazine quoted Deborah Ramirez as saying Kavanaugh exposed himself to her during a dormitory party that involved drinking when they both were Yale University freshmen.

Avenatti is best known as the lawyer for Stephanie Clifford, the adult film star known as Stormy Daniels who says she had an affair with Trump before he was elected president. Avenatti has said he is exploring his own bid for the presidency as a Democrat.

Bloomberg’s John McCormick contributed.