"The Republicans must always move to the left." That is exactly what the Republicans have been doing since the 1960's...following the Democrats to the left; via "compromise". The "compromise" is always the Republicans give in for a "promise" of something in return sometime in the future. This is so ingrained today that the Republicans caved on the fiscal "cliff" for a promise of "something" in the future.
It is time for the two parties to merge - The Democrat-Republican Party. Then another party that truly represents the true conservatives (Libertarian?) can be strengthened or formed. I didn't leave the Republican Party, they left me. (double entendre intended)