The left is no longer a place where Christian thesis (which is correct behavior according to the Word of God) could have any say., the left is antithesis- a "whatever feels good", or picking and choosing of what scripture to extrapolate at the very best is all that could be achieved. That is dangerous and destroys the church, so why promote that in government.
The evangelists aren't that stupid to divide their power and make themselves even weaker. They'll just do a little picking and choosing themselves, get rid of the rino's and put in someone else who keeps their word. Eventually the numbers will be there.
I should add that it's one thing to get elected (and we elect more than a president) and it's another to stay there. Campaign $$$ are important if someone in the house or senate wants to stay there, so they have to listen to who puts them there.
The President is only ONE person with a veto. Bills are put through and amendments are made by a majority effort.