Patrick Shanahan will assume the title of acting Secretary of Defense starting Jan. 1, taking the reins from James Mattis, who President Trump said will be out at the end of the year. (Associated Press/File)
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Patrick Shanahan will assume the title of acting Secretary of Defense starting Jan. 1, taking the reins from James Mattis, who President Trump said will be out at the end of the year. (Associated Press/File)
