One of the Super PACs supporting Rep. Michele Bachmann plans to air TV ads attacking her newest presidential rival, Texas Gov. Rick Perry.

Keep Conservatives United, a Super PAC headed by North Carolina GOP activist Bob Harris, will begin airing TV ads in Columbia, S.C., next week, Harris told Hot Dish. The ad will run for five days, he said, though he would not disclose the size of the ad buy.

The ad attacks Perry over increases in spending as Texas governor, citing a Fort Worth Star-Telegram story. "He's supposed to be the Tea Party guy?" a narrator says. "There is an honest conservative, and she's not Rick Perry."

Keep Conservatives United is one of two Super PACs that have aligned behind Bachmann recently. Super PACs, which are required to remain independent of candidates' campaigns but can raise unlimited funds from donors, have quickly become a major fundraising vehicle in the presidential race.

All three major GOP candidates, Bachmann, Perry, and Mitt Romney, as well as President Obama, have Super PACs supporting their candidacies.

The Super PAC ad goes a step beyond the Bachmann campaign in its willingness to criticize the Texas governor. So far the only candidate Bachmann has attacked besides Obama is former Minnesota Gov. Tim Pawlenty, who is no longer in the race. Perry has surged in the polls and blunted Bachmann's momentum since her Iowa straw poll victory.

Harris said his PAC plans to run more ads supporting Bachmann and attacking Perry. "She has the most guts of any conservative lawmaker," Harris said. "That's why we like her."

Update: Perry's campaign responds by calling the ad "blatantly false."

"Gov. Perry is a proven fiscal conservative, having cut taxes, signed six balanced budgets, and led Texas to become America's top job-creating state," Ray Sullivan, RickPerry.org's communications director, said in a statement. "Congresswoman Bachmann's front-group ad is patently and provably false. Unlike Washington, the Texas budget is balanced, does not run deficits and limits spending, even as Texas added jobs and population in big numbers."

Watch the ad below:

?wmode=transparent?wmode=transparent