New Delhi, July 28 -- WASHINGTON - The Heritage Foundation's Oversight Project released nearly three hours of private audio recordings from President Biden's memoir interviews on Tuesday, including a February 2017 exchange in which Biden told his ghostwriter he had just discovered classified materials in his home several months after leaving the vice presidency.

"I just found all the classified stuff downstairs," Biden is heard saying in the recording, made during a session with Mark Zwonitzer, the ghostwriter who worked with Biden on his 2017 memoir "Promise Me, Dad." The tape is one of dozens spanning two years of recorded interview sessions, and it captures Biden in the unguarded register of a man who expected the conversation to rema...