Leland Keyser was named by Christine Blasey Ford as a corroborating witness

Ford said Keyser was among four people who were at the party in Maryland where Brett Kavanaugh allegedly sexually assaulted her in 1984

Keyser has previously told the FBI she could not corroborate her friend's account from that night 

In a new book about Kavanaugh, Keyser repeated her previous stance that she couldn't recall the incident 

'I just really didn't have confidence in the story,' Keyser said in an interview for the book