washington u.s. president donald trump intend nominate raytheon co rtn.n lobbyist mark esper position secretary army white house say wednesday position challenge trump fill two previous nominees withdraw name consideration esper join u.s. missile maker raytheon 2010 vice president government relations hold post industry advocacy group like aerospace industries association u.s. chamber commerce esper graduate unite state military academy west point retire u.s. army lieutenant colonel veteran gulf war accord raytheon memo announce hire trump nominate raytheon lobbyist army secretary