WASHINGTON — The Senate has confirmed Army veteran and former defense industry lobbyist Mark Esper as secretary of defense. Esper’s confirmation ends a stretch of seven months the Pentagon didn’t have a permanent leader. RELATED: Amazon, Microsoft wage war over the Pentagon’s “war cloud” Esper won Senate confirmation on Tuesday by a vote of 90-8 and is to be sworn in by day’s end. The Pentagon had been without a permanent boss since Jim Mattis stepped down last New Year’s Eve.