Donald Trump once torched the director of a USFL documentary in a nasty letter

New Jersey Generals owner Donald Trump in 1983, announcing that he signed Herschel Walker to play running back for the team.  

The Sporting News/Sporting News via Getty Images

The league attracted eventual NFL Hall of Famers Reggie White, Jim Kelly, Steve Young and other talents, but attempted too much too soon, owing largely to Trump’s brash vision.

"It was a nice experience," Trump recalled to filmmaker Michael Tollin in an interview about the USFL for the 30 for 30 documentary Small Potatoes: Who Killed The USFL? "It was fun. We had a great lawsuit."

Trump, the current favorite to become the Republican candidate for President, had more to say to Tollin after seeing the documentary.

The letter:

In case you can’t make out the post-script, it’s: "P.S. YOU ARE A LOSER."

That’s Trump for you, who also managed to find victory for Trump in the USFL’s collapse: “I got this league to go as far as it could go,” Trump said. “Without me, this league would have folded a lot sooner.”