Republican Senator Thom Tillis said on Sunday he believes White House adviser Stephen Miller “should go” and that his role in the Trump administration has been a “big problem”.

The senior senator representing North Carolina, when asked on CNN’s State of the Union if he thinks Miller should go, during a conversation about the administration’s immigration crackdown, responded to host Jake Tapper stating “Oh, of course I do.”

“He is not worried about substance. He’s more worried about form, but I also think that he has an outsized influence over the operations of the cabinet. And I believe we’ve got qualified cabinet members there that sometimes are doing less than what they want to, because of his direction and his outsized influence. He’s a big problem in this administration. He has been from the beginning,” said Tillis.