Sen. Mazie Hirono, a Democrat from Hawaii, accused Attorney General William Barr of lying to Congress and demanded he resign.

"You lied to Congress," she said. "You told Sen. Chris Van Hollen you didn't know if Robert Mueller supported your conclusions, but you knew you lied and now we know."

(Note: CNN has reported that Mueller expressed concerns that Barr's four-page memo didn’t fully capture his report.)

Hirono said Barr has betrayed the American public's trust.