Former New York City Mayor Rudy Giuliani testifies on Capitol Hill in Washington. Giuliani said Sunday, Jan. 12, 2014 that he finds it "pretty darn credible" that New Jersey Gov. Chris Christie didn't know about an apparently politically motivated plan to create traffic jams near the George Washington Bridge. Speaking on ABC's "This Week," Giuliani says candidates "miss a lot of things" in the heat of political campaigns. (AP Photo/Jacquelyn Martin, File)
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