Though early polls show King with solid footing in the Hawkeye State, Steven Law, president of Rove's "super PAC" American Crossroads, told the New York Times the CVP is "concerned about Steve King's Todd Akin problem," referring to King's defense of the former Missouri congressman and Senate candidate's incediary remarks about "legitimate rape." King, too, has been known to offer controversial statements, including his critique of Mr. Obama's middle name "Hussein" as a hindering factor in winning the "War on Terror."

Another target may be tea party Rep. Paul Brown, R-Ga., who is expected to announce today his intention to seek the seat of retiring Sen. Saxby Chambliss, R-Ga. Broun has bagged his share of controversy as well, having had his say in the "birther" movement questioning the president's citizenship, and opining that "all that stuff I was taught about evolution and embryology and Big Bang theory, all that is lies straight from the pit of hell."