How long can Donald Trump hold on to his embattled EPA director, Scott Pruitt? For some inside the White House, it’s not a question of if, but when.

Pruitt is under fire for misuse of taxpayer money and more recently for taking up residence with a lobbyist.

Even Donald Trump confidants are raising concerns. Sunday former New Jersey Governor, Chris Christie told ABC’s George Stephanopoulos said:

“This was a brutally unprofessional transition. This was a transition that didn’t vet people for this type of judgment issues… If Mr. Pruitt’s going to go, it’s because he never should’ve been there.”

There has been no direct comment from the White House on the controversy surrounding Pruitt, but CNN reports:

“…a government official tells CNN that the lack of responsiveness shows they are not ready to step in and defend Pruitt, who they believe has created a series of headaches for an administration looking to move past controversies involving Cabinet secretaries.

A White House official said the source of the frustration stems from the fact that White House officials began learning about this issue from media reports, not Pruitt himself.”