Tea Party supporters are having a time getting behind a GOP hopeful these days -- but seem to agree that Mitt Romney is not their favorite flavor.

And some on that disdain has boiled over the S.C. Gov. Nikki Haley, who was elected in 2010 with strong Tea Party backing.

Haley has endorsed Romney and campaigned with the current front-runner in New Hampshire.

Amy Kramer, the founder of the Tea Party Express, told Breitbart TV that Haley crossed a line with her pick. Haley spoke at a Tea Party Express rally as recently as September.

"She would never have been elected without that Tea party movement," Kramer told commentator Andrew Breitbart. "That doesn't mean she can just go and endorse somebody and automatically it carries the weight of the Tea Party movement. People in South Carolina are extremely upset with her and have vowed to never support her again. There has been a true backlash against her."

Kramer said she has no plan to go against Haley personally, but Tea Party supporters might be looking for payback against office holders they supported who failed to hold to the group's ideals.

"We can vote them out just as fast as they were voted in," Kramer said.

Kramer said her group will endorse a GOP candidate before the S.C. Primary.

We're not taking bets on Mitt.

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