He denies now what he said, but there's evidence ... and, in fact, I remember when he criticised John McCain for having been a captured military man back when McCain was running for President. I may not have agreed with McCain's politics, but I will never, ever deny that he was a war hero of the highest order who served his country with honour - something Cadet Bone Spurs knows nothing about, either serving or honour.
https://www.thedailybeast.com/trump-called-american-war-dead-losers-and-suckers-report
@XaoslordErie McCain even said something honorable during his campaign against Obama. There was a campaign event where McCain defended Obama against some conspiracy crap that one of his followers was spreading. He told the person that Obama was honorable.