Jon Stewart's epic Twitter-war with Donald Trump

Speaking at the Stand Up For Heroes event, Jon Stewart tells the story of how Donald Trump went on an anti-Semitic tear, repeating over and over that Stewart's birth surname was Leibowitz, implying that he'd changed it to disguise his Jewish ancestry.

As Stewart points out, the fact that he is Jewish is incredibly obvious. After a ton of this, Stewart took up the gauntlet, tweeting that Trump's real name was "Fuckface von Clownstick."

If there's one thing we learned from the presidential debates, it's that Trump will rise to bait. And he did — boy, did he…