[whatisthiseven]

How is a legal process a coup? For readers which aren't sure of the definition of coup, "a sudden, violent, and illegal seizure of power from a government."

I don't see how an impeachment inquiry (even if legally a bit vague) as "violent", "sudden", or "illegal", nor is it a seizure of power, since it is just an inquiry.

If you want to argue that ordering witnesses for investigations without first declaring a formal vote on an impeachment inquiry is illegal, you won't find the Constitution or CRS reports state that a vote must be held for such orders to be valid.