About what? Ok, he served. Trump didn't, Obama didn't, Clinton didn't, Roosevelt, Hoover, they all didn't.
Some of the rich did, H W, and G W Bush.
Draft dodgers? Is that his point? I am sure it wasn't just the rich who did.
More recently, a few folks who volunteers for service yet refused to serve
https://en.wikipedia.org/wiki/List_of_Iraq_War_resisters
God love him for his service and sacrifice, but McCain should stop taking cheap shots for a last hurrah and stop making a fool of himself. Time to talk about today's issues instead of dwelling on his past.