President Trump is replacing his Secretary of the Navy as the blockade of the Strait of Hormuz continues as a key chokepoint in the war against Iran. John Phelan is leaving, effective immediately, and Undersecretary Hung Cao will become Acting Secretary of the Navy, the Pentagon said Wednesday in a surprise announcement. No reason was given for his departure. “Secretary of the Navy John C. Phelan is departing the administration, effective immediately,” Pentagon spokesman Sean Parnell announced. “We wish him well in his future endeavors.” Cao, a Navy veteran and failed Virginia Senate candidate, is well-liked by the president. The...