Hillary Clinton’s behavior as the head of the State Department was a violation of her oath of office and should disqualify her from serving in the White House, said Michael Mukasey, who served as the nation’s top law enforcement official under President George W. Bush.

“How she treated, and what she did, with government secrets, when she was secretary of state … exquisitely sums up the case against her presidency,” he said at the Republican National Convention on Tuesday evening. “She sent and received secret and top secret and beyond top secret information and emails on an unsecure, private email system, instead of the secure government system. And she did it without authorization.”