Washington (CNN) - A powerful independent group that backs Republican candidates and causes is going back up on the airwaves with a new ad over the debt ceiling debate that targets five Democratic senators who face challenging reelections next year.
Crossroads GPS (Grassroots Policy Strategy) announced Tuesday that their television commercials will run Tuesday through August 6 in Florida, Missouri, Montana, Nebraska and Ohio.
The ads take on Senators Bill Nelson, Claire McCaskill, Jon Tester, Ben Nelson and Sherrod Brown, saying that "instead of fixing our economy, politicians like ___ voted for billions in new taxes and racked up trillions in debt in crushing debt. Now President Obama wants to continue the reckless spending and raise taxes even higher. And that costs us more jobs. Tell Senator ___ no more blank checks."
The ads come less than two weeks after Crossroads went up with a two week buy that urged ten Democratic House members to cut spending and the national debt. It's the third installment this summer from what Crossroads calls a $20 million effort to "urge decisive action by Congress to cut spending and the national debt and start rebuilding the nation's economy."
Crossroads GPS and its affiliated American Crossroads spent $70 million in the 2010 midterm elections backing GOP candidates and causes, and has pledged to raise $120 million for the 2012 cycle.
Two Democratic groups, Patriot Majority and Americans United for Change, as well as the Service Employees International Union, are also up with ads on the debt ceiling battle that take on Republican lawmakers.
News of the ad buy was first reported by Politico.
- CNN's Gabriella Schwarz contributed to this report.