The top Democrat on the Senate Energy and Natural Resources Committee is probing whether the Trump administration adequately planned for the effective closure of the Strait of Hormuz , which has roiled energy markets for weeks as the war with Iran drags on. Sen. Martin Heinrich , D-N.M., in a letter dated Tuesday to Energy Secretary Chris Wright , shared exclusively with CNBC, demanded answers to a series of questions about how the administration prepared for the closure of the strait ahead of