Exactly right!
In that episode, Simmons was investigating a conspiracy organized by the captain, and every bit of contrary evidence was excused as another link in the conspiracy. Eventually, everybody surrounding the captain was a conspirator.
Republicans need to influence events to the point where Nadler is calling everyone an obstructer of justice for simply following the laws or refusing to cooperate with him. Make the charge of obstruction sound like the boy who cried wolf.
Once everyone becomes a conspirator, nobody is a conspirator, and the accuser looks like a nut.
-PJ