"... why the Republicans are not marching in lockstep against the Democrats ..."
That one's just too easy. For the RINO's it's more important to be part of the A-list cocktail circuit and to get inviatations to the Hamptons. Besides, if they side with the democrats - the media fawns over them - and says they're wise, and fair and nice words like that there.
Sucking Up, huh! Why elect this trash!?