Why blocked Twitter users are suing President Trump

Seven people blocked by President Trump from seeing or interacting with his Twitter account filed a lawsuit against him, arguing that barring them from his popular social-media feed violates the First Amendment to the Constitution. The lawsuit, which raises interesting questions about what constitutes a public forum, as well as the boundaries of free-speech rights on the Web, comes as Trump continues to draw concern about his novel and erratic use of social media.

“President Trump’s Twitter account, @realDonaldTrump, has become an important source of news and information about the government, and an important public forum for speech by, to, and about the President,” the lawsuit said. “In an effort to suppress dissent in this forum, Defendants have excluded — 'blocked' —Twitter users who have criticized the President or his policies. This practice is unconstitutional, and this suit seeks to end it." The Twitter users, represented by the Knight First Amendment Institute at Columbia University, said that Trump's actions violated their Constitutional rights in several ways. They argued that the president has restricted their participation in a public forum, their ability to access official public statements made by him and their capacity to petition the government to air their grievances.

The Twitter users said they brought the lawsuit to seek a declaration that Trump's actions were unconstitutional and to get an injunction requiring President Trump to unblock their accounts and preventing him from blocking other people because of their views.