What is going on with Donald Trump's sniffles?

Judging by Twitter’s instal-reactions, Monday night’s first presidential debate has found its breakout star—Donald Trump’s bizarre, heavily mic’d sniffling.

Make America Sniff Again

— Erika BrooksAdickman (@ThisErikaLife) September 27, 2016

Is it a cold cold? Pneumonia? Something more sinister? Social media exploded with questions:

Some observers cast Trump’s naughty naval cavities in the same light as Al Gore’s infamous exhaling during the 2000 debates.

For proof that the Trump Sniff has become a capital-T Thing, look no further than that ultimate patina of social media status: A parody account.

Win or lose, Trump has already sniffed his way into debate history.