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The secretary of defense’s chief of staff, Eric Chewning, will leave his position at the end of January and return to the private sector, becoming the latest senior Pentagon official to announce their resignation plans over the last several weeks. Chewning, who was previously the department’s top industrial policy official, will be replaced by Jen Stewart, currently the House Armed Services Committee’s minority staff director. "I'm grateful for Eric's professionalism, judgment, and leadership over the last seven months as I…
