The Senate Judiciary Committee is looking into another sexual misconduct allegation against Brett Kavanaugh, involving an incident that took place in 1998, according to documents obtained by The Post.

The anonymous complaint, sent to Sen. Cory Gardner (R-Colorado), says Kavanaugh was drunk and threw a woman up against a wall in a sexual manner after a social event in Washington, DC, the documents released Wednesday by the committee said.

Kavanaugh denied the allegation during a call with Judiciary Committee staff members, calling the unconfirmed claims a”disgrace” that is “doing damage to the country.”

The writer of the letter said her daughter witnessed the attack and the alleged victim is still traumatized and has decided to remain anonymous.

“When they left the bar (under the influence of alcohol) they were all shocked when Brett Kavanaugh, shoved her friend up against the wall very aggressively and sexually,” the woman wrote about the incident and her daughter’s recollection, the documents said.

“There were at least four witnesses including my daughter.”

The allegations comes the day before Christine Blasey Ford, who previously said Kavanaugh pounced on her in a bedroom at a Maryland house party in 1982, will testify to the Senate Judiciary Committee.

Also during the call with committee staff, the judge was questioned about another claim that soon fell apart.

A Rhode Island man had alleged that in 1985 he physically confronted a drunken man who he believes to be Kavanaugh on a boat after the current Supreme Court nominee and a man identified as “Mark” apparently sexually assaulted his friend, the documents said.

The man, whose name is redacted, called Rhode Island Senator Sheldon Whitehouse’s office and claimed he recognized Kavanuagh from his high school yearbook and recounted the alleged incident, which he said happened “on a 36-foot maroon and white boat in the harbor at Newport, Rhode Island.”

Kavanaugh was asked about the man’s account on Tuesday and denied the accusation.

When news of the questioning broke, the man identified as Jeffrey Catalan recanted, saying in a tweet, “I have made a mistake and apologize for such mistake,”

Kavanaugh said during the questioning that the barrage of accusations being launched against him were “doing damage to the Supreme Court.”

“It’s doing damage to the country. It’s doing damage to this process. It’s become a total feeding frenzy, you know? Every — just unbelievable,” he said. “It’s ridiculous. Total Twilight Zone. And no, I’ve never done anything like that.