Unless he is retarded, or a traitor.
FJK
John F Kerry is more than just a traitor to his fellow Vietnam veterans.
He is a Coward for separating his Swift Boat from the other four when one of them was struck by a mine. He is also a mendacious scoundrel for lying about his record and in his after action reports in order to obtain his citations in action(3 purple hearts, one Bronze Star with V and one Silver Star during 4 months and 12 days of active duty in Vietnam).
He even managed to get a purple heart on a training exercise. What a slug!
If anyone is somewhat mentally challenged in this, it is the voters of Massachusetts for returning him to the U.S. Senate.