Sunday on State of the Union

(CNN)Former Republican Govs. George Pataki and Tom Ridge on Rudy Giuliani's controversial remarks about President Obama and the battle for the soul of the GOP.

Homeland Security Secretary Jeh Johnson on national security threats and the fate of his department's funding.
Iraq war architect Paul Wolfowitz discusses the fight for Iraq a decade later and the role of radical Islam.
Plus, Ohio Republican Gov. John Kasich on what worries him most about America and whether he's preparing for White House run in an exclusive Sunday interview.
    Gloria Borger hosts State of the Union -- Sunday at 9am and Noon ET on CNN.