This leads to Pelosi, I think. You figure Nunes is on the same committee and he went to White House as soon as he discovered what was happening. Guessing, then, it has to do with plot to undermine government.
Schiff went the other direction. Pelosi knows and still appointed him. They got Schiff teed up and the dems should be telling him to leave before Pelosi gets dragged into it, which is the warning being given, IMO.
They now have Biden boxed in, too, because the Ukranian/Clinton connection is starting to bubble up. Biden & son in that up to their ears. Some dems were dragging their heels on booting Schiff, so next card is played to twist the arm a little further?
Looks like dems are being forced into house cleaning. Would think Pelosi will play ball to save face but the flunkies may have dirt of their own to leverage.