The 45th president has deployed the social media platform to fire Cabinet members, belittle his rivals, rally his base, befuddle world leaders and entertain, or infuriate, the masses.
But what impact did his outburst last weekend really have? If a president hunkers down in the White House to tweet alone, how much does it matter?
The missives formed the unofficial soundtrack for official Washington on a chilly but sunny weekend, as cellphones buzzed and skittered with every fresh thought or grievance.
They also provided a case study of the ramifications of Trump's eager Twitter finger - moving global markets and outraging politicians for days to come, or slipping forgotten into the ether until the next one.
There were Trump's greatest hits - "Crooked Hillary" Clinton, the Russia "witch hunt" and "last in his class" John McCain - along with some new releases, like a demand that General Motors reopen an Ohio auto plant.
He played media critic with unsolicited advice for Fox News, and conspirator-in-chief with retweets of white nationalists.
He had nothing at all to say about the slaughter of 50 Muslims in New Zealand, but found time to proclaim that Fox should reinstate an anchor who questioning the patriotism of a Muslim congresswoman.
"When he's sending 34 tweets on a Sunday afternoon, he's saying, 'Which is the thing that can get everyone talking about me?'" said Nick Bilton, author of "Hatching Twitter," an account of the site's early years.
"It's almost like a kid who is screaming for a lollipop and an ice pop and a caramel and a chocolate, and is eventually going to get one of them, and it's like, 'Which is the thing that's going to work?' "
While Trump was pecking out angry nuggets, press secretary Sarah Sanders spent her weekend on vacation in West Virginia, and chief of staff Mick Mulvaney did the same in Las Vegas. White House officials made no real effort to intervene or rein Trump in, according to people familiar with how the president spent his days.
One Republican strategist in frequent touch with the White House said the staff had largely "given up" on trying to control their boss.
When asked by the Daily Beast Sunday night whether Trump's tweets and retweets "speak for themselves," Sanders answered, simply, "Yes."
