Lawmakers from both parties told Pentagon leaders on Wednesday that the Defense Department is undermining its own efforts to get military money by diverting billions of dollars for the construction of President Donald Trump’s U.S.-Mexico border wall The chairman of the House Armed Services Committee and the committee’s top Republican warned Defense Secretary Mark Esper that overturning congressional funding decisions to shift money for the wall is an enormous problem that will have consequences. The plan to shift money has triggered rare Republican opposition to one of Trump’s priorities. Rep. Mac Thornberry, R-Texas, said the result may be that Congress...