Sidewalks, Streets, and Tweets: Is Twitter a Public Forum?
Valerie C. Brannon at the Congressional Research Service: “On May 23, 2018, a federal district court in New York in Knight First Amendment Institute v. Trump held that the Free Speech Clause of the First Amendment prohibited President Trump from blocking Twitter users solely based on those users’ expression of their political views. In so doing, the court weighed in on the now-familiar but rapidly evolving debate over when an online forum qualifies as a “public forum” entitled to special consideration under the First Amendment.
