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The eleventh Republican debate, focusing on national security, was held at DAR Constitution Hall in Washington, D.C., sponsored by CNN, the Heritage Foundation, and the American Enterprise Institute, and aired nationally on CNN, CNN en Español, and worldwide on CNN International, CNN Radio and CNN.com. It was moderated by Wolf Blitzer and was attended by Michele Bachmann, Newt Gingrich, Jon Huntsman, Jr., Ron Paul, Rick Perry, Mitt Romney, Rick Santorum, and Herman Cain in his final debate appearance.