There's one reason and one reason only why New Jersey Gov. Chris Christie won't win the Republican presidential primary, according to Jon Stewart.
On Wednesday night's "Daily Show," he explained that it's not any of the scandals that have dogged Christie over the years.
"Under him, New Jersey's had its credit downgraded eight times, unemployment has run rampant, his capos blocked traffic for political retribution, the Sandy rebuilding effort remains pathetic, he's raided pensions after promising not to, his abominable Exxon settlement -- not that anyone in the Republican primary is going to give a shit about that stuff," Stewart said. "But he has crossed the line for Republicans."
What did he do?
In 2012, he embraced President Barack Obama in the aftermath of superstorm Sandy.
"He made the unpardonable crime of treating Barack Obama like a person," Stewart said after showing clips of Fox News hosts ripping Christie for working with the president after the storm.
"When Barack Obama arrived to lend aid to your hurricane-ravaged state, you shook his hand," Stewart said. "Why did you not slay him in a Klingon honor duel? It's what Ronald Reagan would have done."
For his full explanation of Christie's troubles -- plus something Christie said that Stewart called "the saddest thing I've ever heard" -- check out the clip above.
CORRECTION: A previous version of this article misstated the year that Superstorm Sandy occurred.