The FBI interviewed a Colorado man who went to high school with Supreme Court nominee Brett Kavanaugh on Tuesday, the man's lawyer confirmed to 9NEWS.

It's unclear what he was asked or what he said when the FBI interviewed him on Tuesday. His home was the site of a party in 1982 that appears on Kavanaugh's calendar from that year.

The SCOTUS nominee has offered his calendar from that year as evidence to refute the claims of Dr. Christine Blasey Ford, who accused the judge of sexual misconduct at a party in 1982 while they were in high school.

According to his Facebook page, Gaudette lives in Denver and works as a small business advocate.

PREVIOUSLY | Lawyer: FBI has not reached out to witnesses named by Colorado Kavanaugh accuser

Ford and Kavanaugh testified in front of the Senate Judiciary Committee late last week. After their testimony, the committee, along party lines, voted to endorse Kavanaugh's nomination to the wider Senate.

A vote on Kavanaugh was delayed, however, after Republican Sen. Jeff Flake of Arizona requested a supplementary FBI investigation into Ford's claims.

The Senate has delayed Kavanaugh's vote until the FBI could look into the claims. The bureau has until Friday to complete its investigation as Senate Republicans plan to vote this week on Kavanaugh's confirmation.