03/20/2012 08:48 am ET Updated Dec 06, 2017

RNC Ad: Health Care 'Another Broken Promise'

The Republican National Committee came out Tuesday with a new ad attacking President Barack Obama for his health care reform law, saying it increases costs for patients and taxpayers.

"Barack Obama promised to cut health care costs," a voiceover says, cutting to a clip of Obama saying in 2008 that he would bring down insurance premiums. "But it didn't happen," the voice continues.

"Another broken promise by Obama," concludes the ad.

Republicans view health care as a weak spot for the president, and one that riles up the conservative base. All of the four remaining GOP presidential candidates have promised to repeal "Obamacare," most of them saying they would sign a repeal into law on Inauguration Day.

The RNC ad comes a week before the Supreme Court begins to hear arguments on the constitutionality of health care reform, a case that some opponents of the law say could hurt the president's reelection chances even if the law is upheld.

A Bloomberg National Poll taken earlier this month found that about 75 percent of Republicans believed the law should be repealed. The message also could appeal to independents, 44 percent of whom favor repeal, according to the same poll.

The ad will air on television in Virginia, New Mexico, Nevada, Ohio, Pennsylvania and Florida.