McCain started it. He branded tens of thousands, maybe 100’s or even millions of Trump followers as, “crazies”. You insult or attack Trump, he hits back.
Like him or not, responders (to Trump comments) lose credibility when they know damn well what he said and/or meant but cast it differently.
McCain, unlike Forrest Gump for example, is called a war hero because he was captured AND survived tortuous conditions vs. running into the line of fire to save fellow soldiers.
The point, the important issues:
How are US vets being treated?
How is US immigration policy working, especially along the southern border?