The GOP platform. If you don't support that you are a RINO or a liberal scum or a gay, crossdressing, Francophile who hates America and is also probably a Muslim. Sadly your options are slim to none, brother. Ain't no room for any other kind of Republican in today's GOP.
Sounds to me as if the COS and your Congressman are in fact Teapartisans. They call may themselves Republicans but in truth they are likely from a GOP much different from the one many of us once supported. Unfortunately you see that all to often these days. Teapartisans now largely own the GOP. They co-mingled with Christian religionists, who were already in the process of seizing control of the GOP, and today they are almost indistinguishable.
The present "GOP" will have little or no relevance in another 8 years. Younger voters are going to change that as more people leave the party and as the old white men fade away.
Where will most conservatives go? At present they are leaving the party and becoming independents or libertarians. Why remain in the party? Either ruling party, for that matter. It only encourages the bastards and neither party needs any more encouragement.