Rep. Mac Thornberry (TX), the top-ranking Republican on the House Armed Services Committee, said Jan. 8 he opposes any plan that would use Defense Department funds to construct a wall on the southern border, per an option that has been floated by President Trump. "I am opposed to using defense dollars for non-defense purposes," he said. "The military is not short of challenges. They're not out there looking for new missions." Thornberry said DOD needs its existing military construction money...