Defense Secretary Jim Mattis' directive to review the Joint Strike Fighter program stems from a pair of phone calls then-President-elect Donald Trump had in January with F-35 Joint Program Office director Lt. Gen. Christopher Bogdan, the senior Air Force officer told lawmakers. Bogdan told the House Armed Services tactical air and land forces subcommittee during a Feb. 16 hearing about the unusual calls -- including one where Trump had Dennis Muilenberg, chief executive officer of Boeing, F-35 prime contractor Lockheed...