John McCain works in politics.
John McCain . He was first elected to the U.S. Senate in 1986 , winning re-election easily five times , most recently in 2016 . The Committee on Armed Services ( sometimes abbreviated SASC for Senate Armed Services Committee on its Web site ) is a committee of the United States Senate empowered with legislative oversight of the nation 's military , including the Department of Defense , military research and development , nuclear energy ( as pertaining to national security ) , benefits for members of the military , the Selective Service System and other matters related to defense policy .