Eric Cantor's stunning primary loss in Virginia was supposedly driven by Cantor's support for immigration reform and his being too much of a "Beltway" figure (oh, and possibly that he is Jewish - not a real religion outside of northern VA).
But the bigger issue here is whether the Tea Party will ever really turn on its GOP rich-wing Overlords by (egad) starting to oppose tax cuts for the rich. The people who see themselves as "Tea Party" people generally worship ignorance, racism, their church, and small government - not necessarily in that order. Most are poorly educated and not at all wealthy.
Will they ever wake up one day and say, "Well, you know what, I could balance the budget a lot more quickly if I simply allowed the rich to pay more in taxes"? I mean, Mike Huckabee (the erstwhile champion of this group) once had the balls to say that maybe cutting taxes for millionaires should not be priority #1 for the GOP. Of course, after that blasphemy, Huckabee's donations immediately dried up and his chances of ever becoming President disappeared, but imagine if Tea Party voters made it part of their litmus test that any candidate had to be for balancing the budget by use of spending cuts AND tax increases for the wealthy. There are about 5,000,000 wealthy people in the U.S. and about 350,000,000 non-wealthy people. If the Tea Partiers as a voting bloc abandoned the 5,000,000, those folks would be absolutely fucked.
We shall see.