Conservative advocacy organization Crossroads GPS announced Tuesday a new round of television ads as part of their $20 million summer campaign to hammer President Barack Obama and other Democrats on the economy. The TV spots are aimed at five vulnerable Democratic Senators up for re-election in 2012: Bill Nelson (Fla.), Claire McCaskill (Mo.), Jon Tester (Mont.), Ben Nelson (Neb.) and Sherrod Brown (Ohio). (See our Senate landscape piece on these races here.)

In a press release, the organization said this round of advertising, which will air on local network stations through Aug. 6, cost $1.6 million. That figure includes production and advertising on the Internet.

“President Obama has made it clear that he wants to raise taxes in these debt negotiations, which will cost jobs and send the economy further into a tailspin,” Crossroads GPS President Steven Law said in a statement. “Between his health care bill and the failed stimulus, Obama and his allies in the Senate have blown a massive hole in the deficit, and it’s time to take away their blank check.”

The language is similar to what Speaker John Boehner (R-Ohio) used Monday night in an address to the nation.

The ads feature people bemoaning higher gas prices, lower home values and substantial unemployment.

In the Florida ad, the characters complain that “instead of fixing our economy, politicians like Bill Nelson voted for billions in new taxes and racked up trillions in crushing debt” and “now President Obama wants to continue reckless spending and raise taxes even higher, and that costs us more jobs. Tell Sen. Bill Nelson, no more blank checks.”

The ads aimed at McCaskill, Tester, Ben Nelson and Brown have similar scripts. The people in the advertisements are local constituents of each Senator, Crossroads said in its release.

Watch the Florida ad:

Watch the Montana ad: