A group of anonymous activists (who say they work in tech and entertainment) launched the Block the Bully campaign on March 16. The team calls itself "the Resistance."

Block the Bully
Block the Bully

To get started, participants need to make sure they're signed into Twitter. Then they go to the Block the Bully site, and click the "connect" button.

Block the Bully 2
Block the Bully

Source: Block the Bully

Once they authorize the app, it automatically un-follows Trump, and blocks him (meaning they won't see any of his tweets on their feeds, and he can't reply or DM them).

Block the bully authorize
Block the Bully

Even if participants are not following @RealDonaldTrump, clicking "connect" on Block the Bully will automatically do it for about one second, before immediately unfollowing him.

block the bully
Twitter/Screenshot

They'll then have the option to share that they've blocked Trump.

Block the Bully
Block the Bully

A few hours after the launch, users started tweeting that they joined the campaign.

 

"Since taking office, the president has continued to use his Twitter account to bully opponents, spread misinformation, and undermine faith in American institutions," the campaign creators said. "We let him get away with it by following him, retweeting him, replying to him, even when we do so in disbelief and disgust. He feeds off the attention. We need to change our own habits in order to defang him."

trump protest
Participants in the 'Not My President's Day' protest against Trump in New York, New York on February 20, 2017.
AP Images