It appears Trump wants Mick Mulvaney as Chief of Staff, yes? installing a Senate confirmed official as CoS, it seems Trump might now be the first POTUS to have a Chief of Staff that can be forced to testify before Congress.
The only people pushing the Athenian Straw Man Nonexistent Threat of Slippery Slope Windyfoggery (ASMNSSW) RE DEMOCRACY are people who have a misunderstanding/problem or hatred of democracy. (See AUTHORITARIANS)