My brother was a Vietnam vet too. Unfortunately he’s dead, and Kerry isn’t. He’s spent his life being a traitor, first to his country, and also to his now deceased ex-wife, who he tried to get an annulment from, which would have bastardized his daughters. How the f’er can look himself in the mirror each day is beyond me. I hope he rots in hell with McCain, and the rest of their ilk.
Probably sold his soul for power and influence. That usually is the most simple and logical explanation.