Pro-Santorum super-PAC increases spending in Wisconsin

The pro-Rick Santorum super-PAC Red, White, and Blue Fund is increasing its television ad buy in Wisconsin.

The super-PAC announced Thursday that it had spent an additional $360,000 on television advertising in Milwaukee and Green Bay, bringing the total amount spent to $660,000. The super-PAC had originally announced that it was spending $304,000 on advertising in Wisconsin. The super-PAC also announced it had added the following Wisconsin cities to its ad blitz: Madison, Wausau and Lacrosse.

The announcement comes just ahead of Wisconsin's April 3 primary. Santorum has been focusing most of his recent campaigning in the state.

On Tuesday, the super-PAC released an attack ad, set to air in Wisconsin through the primary, criticizing Romney for being untrustworthy given his record as governor of Massachusetts.

"What kind of president would Mitt Romney be? Just look at his record as governor," the voice-over in the ad begins. The ad then also accuses Romney of leaving Massachusetts badly in debt when he left office and passing healthcare reform legislation that served as the "blueprint" for the Obama administration's healthcare reform law.