The U.S. Supreme Court set aside a federal appeals court ruling that former President Donald Trump violated the First Amendment when he blocked critics from following his Twitter account. The case had already lost its practical impact given Trump’s election defeat and Twitter’s Jan. 8 decision to permanently ban his @realDonaldTrump account for glorifying violence. But the two sides in the case continued to spar over the fate of the appeals court decision. Before Trump left office, the Justice Department asked the justices to wipe away the precedent, while those suing him sought to keep it intact. The appeals court said a social media account run by government officials can become a constitutionally protected “public forum” if used to conduct official business. The Supreme Court has said t...