If the tea part was in decline since 2010, it was because the GOP-e,Karl Rove, Fox News, and RINOs everywhere attacked it and our candidates over and over and over again. How many lessons must the RINOs learn?
If the Tea Party expects to be a force, it cannot blame the "GOPe" or Karl Rove for its defeats. Otherwise, you'll have to credit the GOPe and Rove with its victories.
But that was the whole claim of the Tea Party in 2010---that it had influence and power outside of the GOP. The quickest way to become a real force is to admit failures and correct them rather than pretend they were someone else's fault.