As it became clear that President Barack Obama was headed for another term in office, the most digitally savvy leader of the free world took to Twitter.
"This happened because of you. Thank you," he tweeted, with a photo of him hugging first lady Michelle Obama, captioned "Four more years."
In the minutes that followed, the photo broke the record for most retweets, wrestling the crown from Justin Bieber.
Meanwhile, celebrities, journalists and politicos of all stripes weighed in on Obama's re-election, none with as much unhinged fervor as Donald Trump.
A selection of the night's highlights: