President Donald Trump isn’t backing down from his widely condemned decision to revoke the security clearance of John Brennan, who served as CIA director under President Barack Obama. Brennan has been a vocal Trump critic, describing the president’s July press conference with Vladimir Putin—in which Trump cast doubt on his own intelligence agencies’ assessment that Russia had interfered with the 2016 election—as “nothing short of treasonous.” On Saturday, Trump tweeted that Brennan would “go down as easily the WORST [CIA director] in history & since getting out, he has become nothing less than a loudmouth, partisan, political hack.” Trump—who last year revealed what the Washington Post described as “highly classified information” to Russian officials during an Oval Office meeting—added that Brennan “cannot be trusted with the secrets to our country!” Has anyone looked at the mistakes that John Brennan made while serving as CIA Director?