The article cites some examples:
Sen. Marco Rubio of Florida won’t take sides in GOP incumbent primaries because of his own experience of running against the establishment’s pick. Neither will Sen. Mike Lee of Utah, who rode tea-party support to take down a three-term incumbent. Sens. Rand Paul of Kentucky and Ted Cruz of Texas are also unlikely to back any of the conservatives taking on Republican senators; in fact, Paul is committing heresy in the eyes of tea-party hard-liners by endorsing two Washington insiders, Kentucky Sen. Mitch McConnell and Wyoming Sen. Michael Enzi.
This show of decorum from senators who instigated the unpopular government shutdown is striking at a time of mounting friction between the establishment and tea-party wings of the Republican Party. So what’s behind it? The upshot of the tea-party caucus’s largely staying on the sidelines—and, in Paul’s case, endorsing two of his colleagues—is that of all the protocols the conservative insurgency has trashed on Capitol Hill, a member endorsing a colleague’s opponent remains strictly taboo.
Note to Republicans–it’s not a club–it’s a government, and right now it isn’t working very well.
The Tea Party is a grass roots movement. It was started and has been joined by people who do not like business as usual in Washington. If Congressmen who are elected by the Tea Party become part of business as usual, they will be unelected. The Tea Party will gain strength as people feel the weight of government over-reach. Since the Tea Party is responsible for what life there is in the Republican party, the Republicans in Congress need to support Tea Party candidates when they are running against business as usual candidates.