In a moment that could come to define his candidacy, Gary Johnson’s stumbling response to a question about Aleppo, Syria, on MSNBC this morning went viral almost immediately, with question “What Is Aleppo” quickly becoming a trending topic.
During an interview with the panel on “Morning Joe,” the Libertarian presidential candidate Johnson was asked by Mike Barnicle, “What would you do, if you were elected, about Aleppo?”
Johnson stared for a moment, with Barnicle repeating the word “Aleppo” for clarity, and then looked around at the other hosts Mika Brezezinski and Willie Giest before asking, “And what is Aleppo?”
Read More: How the Last Gardener of Aleppo Brought Hope to Syria
“You’re kidding me,” Barnicle responded.
“No,” Johnson said.
Barnicle explained that he was referring to the city in Syria that is the “epicenter of the refugee crisis,” and, finally, Johnson understood.
“OK, got it. Got it,” Johnson said. “I do think that it’s a mess. I think the only way we deal with Syria is to join hands with Russia to diplomatically bring that to an end.”
Read More: Wounded Syrian Boy Is Brutal Reminder of the Refugee Crisis
As he recovered from the gaffe, though, the question “What is Aleppo?” was being repeated and re-Tweeted online, with video clips of Johnson being shared throughout the morning as viewers reacted to a presidential candidate not knowing the major Syrian city.
WATCH: Libertarian presidential candidate Gary Johnson asks Mike Barnicle, "What is Aleppo?" https://t.co/BcG5hufHYf
— MSNBC (@MSNBC) September 8, 2016
@MSNBC You gotta be kidding me.
— Bob (@bobw805) September 8, 2016
@MSNBC Wow that was unbelievable.
— Julie (@fredsmyangel) September 8, 2016
@MSNBC absolutely disqualifying as our next #CommanderInChief still shaking my head can only imagine what @mikebarnicle thought of response
— Robert Wolf (@robertwolf32) September 8, 2016
!!! Mike Barnicle just asked Gary Johnson about Aleppo — Johnson appeared to not know what that is. "Aleppo is in Syria," Barnicle tells him
— Bradd Jaffy (@BraddJaffy) September 8, 2016
The very moment that catapults #GaryJohnson out of obscurity also sinks his campaign. #WhatIsAleppohttps://t.co/KLDMFhGwnK
— Suzanne DiMaggio (@suzannedimaggio) September 8, 2016
Gary Johnson asked on national television: "What is Aleppo?"
— JOEY MANNARINO (@Realjmannarino) September 8, 2016
There goes that candidacy...
Call me naive, but the #GaryJohnson "gaffe" this a.m., I'd be more concerned if he didn't know about something in the US vs another country
— Andres (@APR21203) September 8, 2016
Here's hoping "what is Aleppo?" replaces "who is John Galt?"
— Travis Reilly (@mmmtravis) September 8, 2016