President Donald Trump is considering revoking security clearances from ex-officials including former CIA Director John Brennan, former FBI Director James Comey and former Director of National Intelligence James Clapper, White House press secretary Sarah Huckabee Sanders said Monday.

Sanders said Trump believes the former officials “politicized” their positions by accusing Trump of inappropriate contact with Russia, and she said in some cases they “monetized their clearances,” without clarifying what she meant.