Defense secretary
The defense secretary heads a department with more than 25,000 employees on-site, not to mention the nearly 2 million members of the armed services and reserves, and a budget that constitutes about a sixth of all federal spending.
Current head: Ashton B. Carter
Names floated
Gen. James Mattis
Retired 4-star General
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Trump tweeted: “General James ‘Mad Dog’ Mattis, who is being considered for Secretary of Defense, was very impressive yesterday. A true General’s General!” Picking Mattis, a retired senior military officer, would break with 65 years of U.S. history. (
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Tom Cotton
Senator from Arkansas
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An Army veteran who served in Iraq and Afganistan and, at 39, is the youngest member of the Senate.
Stephen Hadley
Former national security adviser
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Jim Talent
Former senator from Missouri
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Duncan D. Hunter
California congressman
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Kelly Ayotte
Outgoing senator from New Hampshire
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If chosen, Ayotte would stand out in a Trump administration as a neoconservative defense hawk and one of the few women in the Cabinet.