PolitiFact - Yes, Donald Trump did call John McCain a ‘loser’
tulc(this is President Trumps 137th pants on fire)Trump tweeted, "I never called John (McCain) a loser."
That’s false. He called McCain a loser at a televised event in 2015 and then, later that day, tweeted out a web post recapping the event.
We rate the statement Pants on Fire!