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Retired United States Marine Corps General James N. "Mad Dog" Mattis, US President-elect Donald J. Trump's selection to be US Secretary of Defense, as he met with US Senate Majority Leader Mitch McConnell (Republican of Kentucky) in his office in the US Capitol in Washington, DC on Wednesday, December 7, 2016.<br />
Credit: Ron Sachs / CNP /MediaPunch
James N. "Mad Dog" Mattis