[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/06/14/art.burrad0614.aufc.jpg caption ="A liberal advocacy group will air ads this week targeting Sens. Chuck Grassley and Richard Burr."]Washington (CNN) - Three Republican senators are being targeted by a liberal advocacy organization for supporting a resolution sponsored by Alaska Sen. Lisa Murkowski that would have diminished the Environmental Protection Agency's regulatory authority over greenhouse gas emissions. The resolution was narrowly defeated.
Americans United for Changes announced Monday that it will spend $400,000 "making examples of" Sens. Scott Brown, R-Massachussetts, Chuck Grassley, R-Iowa, and Richard Burr, R-North Carolina "for backing the Murkowski Big Oil Bailout."
The 30-second ad targeting Brown aired this weekend in Boston and ads targeting Grassley and Burr will air June 15-21, according to Lauren Weiner, the group's deputy communications director.
"Even with disaster on our coast and Iran using oil money against us, Richard Burr voted to let big oil off the hook," the narrator in the ad set to air in North Carolina will say. "Sen. Burr, next time, look out for America's clean energy future – not big oil profits."
The ads will air in tandem with six ads paid for by Clean Energy Works that thank some of the senators who voted against Murkowski's resolution.