washington lockheed martin corp f-35 fighter jet program essential security unite state ally pentagon official say monday look defend program week president-elect donald trump criticize delay cost overrun f-35 program cost control trump write twitter last week echo campaign promise cut waste federal spend billions dollars save military purchase january 20th speak reporters monday air force lieutenant general chris bogdan run f-35 program pentagon say opportunity speak trump transition team would tell program control years delay perception program control bogdan say give opportunity would like try explain new administration vastly different program 2011 bogdan say incoming administration try get industry defense department get good value money applaud new administration strive say trump twitter broadside send defense share tumble fan concern incoming administration reduce defense contractors profit margins cut broad federal spend threaten u.s. factory job even trump promise boost manufacture employment f-35 program describe expensive weapon system history dog problems pentagon chief arm buyer describe acquisition malpractice decision produce jet complete development f-35 chief defend program trump criticism