Vice President JD Vance is defending the federal government’s investigation into former national security adviser John Bolton, as Democrats slam the FBI’s search of his home last Friday as a politically targeted attack. But Vance also made it clear he couldn’t say what Bolton might have done.

Trump, during that first term, was churning through national security advisers with regularity, and Bolton jumped from his role as a Fox News analyst to the White House in March of 2018 after promising Trump “he wouldn’t start any wars” if he was selected, CNN reported at the time.