Scouts Out! Cavalry Ho!
The fact that Democrats resort to childish name-calling doesn't make it more effective or appealing for Rush to do it.
I agree with you that the GOP needs to grow a pair and fight - - but I disagree that effective fighting amounts to "so's your old man" and other infantile verbal slings. Really effective fighting would be such things as 24 hour sessions to break filibusters; detailed exposes of graft and corruption on the Dem side; unleashing federal prosecutors against pardongate and other unsavory stuff from the past administration.
Calling somebody a "witch" only gives the other side ammunition for their claim that conservatives are dullards and demagogues; It doesn't persuade anybody and it doesn't make Hillary or any other Dem accountable for the real harm - or alleged crimes - that they've been involved in.