Democratic National Committee Chairwoman Debbie Wasserman SchultzDeborah (Debbie) Wasserman SchultzKoch-backed group to target some Republicans over spending vote in new ad campaign Singer Jason Mraz: Too much political 'combat' in Washington Pelosi defends leadership effort to cull Dem primary MORE (D-Fla.) slammed Republicans for creating a select committee on Benghazi, arguing they did it to gin up conservative enthusiasm because they'd lost on ObamaCare.

"The bottom line here is that Republicans have clearly lost the ability, because we've had such a precipitous drop among Republicans, even, in their fervor for repealing the Affordable Care Act, that they are clearly doing this to drive their turnout," Wasserman Schultz said on CNN's "State of the Union" Sunday morning.

"The Republicans have lost this as an issue that they can gin their base up. That's why they've turned to this select committee on Benghazi."

Rep. Michele BachmannMichele Marie BachmannBachmann won't run for Franken's Senate seat because she did not hear a 'call from God' Billboard from ‘God’ tells Michele Bachmann not to run for Senate Pawlenty opts out of Senate run in Minnesota MORE (R-Minn.) laughed at the suggestion that ObamaCare was no longer a salient issue for Republicans.

"This is the issue Democrats are running from, and rightfully so," she said.

Bachmann also defended the committee's creation.

"What this committee is doing is doing a very careful look at a very deliberate place to go through depositions of people on the ground to find out the truth of what's happened," she said. "We need to get answers. This cannot be politicized."

Benghazi is a top issue for some in the GOP base, but polls show it hasn't emerged as a major concern for Americans. Polls also show ObamaCare remains unpopular, but those who want to repeal it rather than make changes to it are in the minority.