Original sentence: A group associated with Columbia University filed a lawsuit on behalf of blocked users, called Knight First Amendment Institute v.Courts have been clear that Twitter statements can be used as evidence of intent.Department of Justice attorneys seeking to defend Trump's decisions in court.In 2017, a federal appellate court cited one of Trump's tweets in upholding a lower court's order blocking Trump's Executive Order 13780 from going into effect.Plaintiffs successfully argued that @realDonaldTrump reply threads constituted a "designated public forum" akin to a public meeting, and therefore blocking users based on their political viewpoints violated their constitutional right to freedom of speech.The Second Circuit upheld this ruling on July 9, 2019.Trump has blocked a number of users from his "@realDonaldTrump" Twitter account, preventing these users from viewing Trump's tweets or posting public replies.Trump's Twitter posts have contradicted his agenda by undercutting or contradicting public official statements as well as the arguments of U