U.S. Supreme Court nominee Brett Kavanaugh is denying allegations from a third accuser, calling them from the "Twilight Zone."

FOX's Rachel Sutherland reports from Washington:

In an affidavit released by adult film actress Stormy Daniels' attorney Michael Avenatti, Julie Swetnick says Kavanaugh was present at gang rapes at house parties in the 1980's, and that she herself was a victim of one of those rapes, though she does not name Kavanaugh as an attacker. 

Senate Judiciary Committee Republican Chair Chuck Grassley reacting to the claim:

(Grassley) "So obviously with this one, we have a contact and our lawyers are on it right now, out staff investigators."

Grassley says he has a responsibility to hold tomorrow's hearing with Judge Kavanaugh and his first accuser, Christine Blasey Ford.

In Washington, Rachel Sutherland, FOX News.

Follow Rachel Sutherland on Twitter: @SutherlandFOX