Why McCain? Because he was military, born and bred. Had the privilege of his father's and grandfather's rank growing up Navy. He had the privilege of an Annopolis education. He had the privilege of being a pilot. As soon as things got tough, he sang to save himself and to earn favor. He broke the Code of Conduct.
But because his daddy was a 4 star, he got presidential pardon and a promotion. As soon as they "retired" him, he ditches his faithful wife who stood by his worthless ass while he was a POW, for a rich beer distributors daughter and gets elected to congress. There he stonewalled efforts to locate American POW's left behind in SE Asia, doubtlessly causing US servicemen to die forgotten by their country in enemy captivity.
There was a reason they wouldn't let his filthy name pass their lips. May he roast in the lowest, hottest and most excrement filled level of hell.