Charles is right a lot, not this time. By March the worst of the damage will have been done, and be very difficult to be undone, even if the GOPe wanted to, which they don't.
I would want to be very careful about lambasting the so-called "GOPe" (which, of course, stands for the GOP establishment), as that course of action is not typically successful.
About a half-century ago, the John Birch Society also was dismissive and contemptuous of the "GOP establishment." And, although the Birchers held some truly bizarre ideas, they also were correct as concerning some matters; but it was their steadfast refusal to make any sort of peace with the "GOP establishment" that ultimately led to their demise...