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.

The former Trump national security adviser whose home and office are being searched by federal agents has been a vocal critic of the Republican president

An investigation seeks to determine whether Mr. Bolton illegally shared or possessed classified information, according to two people familiar with the case.