You realize that he's hiding from extradition by the US?
Trump just needs to say we are not going to indict or extradite JA, and he could walk out. The UK charges are nothing but an excuse to arrest him to he can be claimed by the US.
The RR impeachment effort could be just for show, and to get Dems to defend him.
Or, Gowdy could be just trying to stay impartial, for the eventual trials.