A Yale University classmate of Supreme Court nominee Brett Kavanaugh is disputing Kavanaugh's characterisation of his drinking while in college.
Charles "Chad" Ludington says in a statement issued on Sunday that Kavanaugh was "a frequent drinker, and a heavy drinker".
He also says Kavanaugh was often belligerent and aggressive when drunk.
The FBI has begun investigating allegations of sexual misconduct by an intoxicated Kavanaugh in high school and college, allegations the appeals court judge flatly denies.
One of the three women accusing Kavanaugh, Deborah Ramirez, spoke to FBI agents on Sunday.
According to a person familiar with the matter, she detailed her allegation that Kavanaugh exposed himself to her at a party in the early 1980s when they were students at Yale.