[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/07/23/art.alexander.hcan.jpg caption="HCAN and AFSCME are taking aim at critics of the Obama plan."](CNN) - Health Care for America Now and the American Federation of State, County and Municipal Employees, who favor President Obama's plan to overhaul the nation's health care system, are switching their focus from potential congressional swing votes to staunch opponents, announcing a half-million dollar ad buy Thursday that targets some key GOP critics of the legislation.
"Republicans intent on killing reform for political gain need to be held accountable for their actions," said Richard Kirsch, Health Care for America Now's national campaign director.
The spots - updated versions of the group's election-year "Fighter" ad featuring a cancer survivor - will run for the next five days in areas represented by Tennessee Sen. Lamar Alexander and seven Republican congressmen, including David Camp of Michigan, Bill Cassidy of Louisiana, Dave Reichert of Washington, Mark Souder of Indiana, Pat Tiberi of Ohio, House Minority Whip Eric Cantor of Virginia, and John Shadegg of Arizona, who introduced a GOP health insurance reform bill last week that HCAN says would make it easier for companies to deny coverage to individuals with pre-existing conditions.
Last week, HCAN and AFSCME made another six-figure buy aimed at half a dozen Democratic members of Congress and two senators whose support for the final version of the health care reform bill is in question.