Christine Blasey Ford, who has accused U.S. Supreme Court nominee Brett Kavanaugh of a sexual assault when they were high school students, told a U.S. Senate committee on Thursday that she was “100 percent” certain that the nominee sexually assaulted her at a social gathering in suburban Washington in the 1980s.

In a quavering, often emotional recounting of the alleged assault, Ford said her strongest memory was the “uproarious laughter between the two and their having fun at my expense.” Ford contends Kavanaugh attacked her in a room, where a friend, Mark Judge, was also present. Judge has denied any recollection of the alleged attack. “They were laughing with each other,” Ford testified Thursday.