I believe the Tea Party is currently being hijacked by neocons, and have seen little pushback from from the originators. The neocons are now pushing for conservative values where they have always been conservative, like taxes and such, but gloss over their foreign policy. They now say that this is the true "Tea Party" because there "are no leaders" so they can omit the part on Ron Pauls philosophy that they don't agree with.
Now this might not be apparent for those currently inside Tea Party, but for those outside it is plain for us to see that those neocons that followed Bush are the same people who are now in the Tea Party. Not to sound like a conspiracy theroist, but that was their intention all along after they knew they were going to lose the general election.