Alan Grayson is mentally ill.
He's running an ad accusing Daniel Webster of being a draft dodger during the Vietnam War who "refused the call to service." FactCheck.org notes the very documents Grayson provided show "Webster reported for a military examination as soon as he graduated from college, only to be disqualified on medical grounds."
FactCheck.org rates Grayson's ad as "one of the nastiest we have seen so far this year, and it’s false." They also point out Grayson himself refused to enlist in the military.