That’s right. They’re commies. And they agree with Trump’s slandering of McCain’s military service.
It appears that was the case only when McCain was up against their guy Comrade Obama in the 2008 election. It was only to turn true-blue vets and other true patriots against McCain in order to make it easier for the communist candidate (Obama) to win.
Don't confuse those pro-communist vet groups with guys like the ones in this clip:
John Mccain Exposed By Vietnam Vets And Pow’s:
https://www.youtube.com/watch?v=4hr37eE0nO8&feature=youtu.be
The pro-commie vet groups only went after McCain to help the pro-communist candidate (Obama) win the '08 presidential election. The true patriot vet groups went after him because they sincerely didn't like the things he did while prisoner at the Hanoi Hilton. They apparently didn't care who he was up against in the 2008 election. They just wanted the truth about him to be told.