Graham is retired Air Force JAG, IIRC
Lindsey Graham. Lindsey Olin Graham (born July 9, 1955) is an American politician and retired U.S. Air Force Reserve colonel serving as the senior United States Senator from South Carolina, a seat he has held since 2003. He is a member of the Republican Party.
In 1998, the Capitol Hill daily newspaper The Hill contended that Graham was describing himself on his website as an Operation Desert Shield and Desert Storm veteran. Graham responded: "I have not told anybody I'm a combatant. I'm not a war hero, and never said I was.... If I have lied about my military record, I'm not fit to serve in Congress", further noting that he "never deployed." In 1998, Graham was promoted to lieutenant colonel. In 2004, he received his promotion to colonel in the U.S. Air Force Reserve.