President Donald Trump on Thursday said he did not sign off on a $200 million border security advertising campaign featuring Homeland Security Secretary Kristi Noem.

Democrats celebrated Kristi Noem’s firing as the Homeland Security secretary on Thursday, while calling for more heads to roll among President Donald Trump’s more controversial aides and advisers.

“We’ve been successful at whipping everybody the president has nominated, and I expect the same for Markwayne Mullin,” Sen. John Barrasso of Wyoming, the No. 2 Senate Republican, said Thursday.