“It was so cold in New York City this morning, walking to work, I saw a Wall Street stockbroker spooning with Zohran Mamdani.” This joke, first delivered by Jimmy Fallon on December 9, perfectly encapsulates the spirit of the host’s Tonight Show monologue jokes. It’s rhythmic, lightly topical, tepid, and over and done with before you have time to think about it. The quip is so representative of Fallon’s whole deal that it deserves to be studied. Its cue card should be placed in a glass case in a museum. And it’s all thanks to Fallon that the joke is inspiring this much dedicated analysis. The host repeated versions of the joke without acknowledging it during his monologues on December 16, December 17, and, most recently, on January 22.

Three different nights, same Mamdani monologue joke: pic.twitter.com/tTWza3KD2d

— LateNighter (@latenightercom) December 18, 2025

By the third time Fallon repeated the joke, audiences caught on. Compilation clips began circulating online, and people wondered what Fallon’s endgame was. Was he making a grandiose statement about the plug-and-play nature of monologue jokes? Was he simply being careless and repeating the same joke without realizing? Was he doing a subtle callback to reward eagle-eyed viewers? Well, on The Tonight Show’s January 26 episode, the late-night host revealed that he’d been playing the long game all along. He began by telling a series of jokes with the same premise: “It’s so cold, J.D. Vance shrunk to the size of Marco Rubio. It’s so cold, I watched the Melania movie just to warm my heart. It’s so cold, President Trump got a space heater installed in his MRI machine.” Finally, Mamdani walked on to huge cheers from the audience. “Jimmy, let me try one,” he said. “It’s so cold in New York City, the rent froze itself.” Then, as quickly as the mayor arrived, he was gone.

It was an especially rewarding payoff, in part because The Tonight Show is not usually known for ambitious jokes like this that unfold over multiple episodes. Yes, Fallon is the poster child for Middle America’s vanilla sensibilities, but when it comes down to it, he still knows how to commit to a solid bit.

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