Nope. Registered as neither.
Didn't "serve" in the military either. Well, the CIA assigned him duty in the Air Force, giving him a 2nd LT commission, just to make it "official." His CIA assigned job in the Air Force? "Intelligence" briefings.
Is he a "useless tool?" Apparently not if one is gay or lesbian. For them, he a is most useful tool.
Thanks for the “inside baseball” on Gates