https://arstechnica.com/tech-policy/2019/07/trump-cant-block-you-on-twitter-appeals-court-affirms/

It's one thing for most of us to block Twitter users who annoy us, but it's a violation of those users' First Amendment rights for the president to do so, a federal appeals court confirmed.

The US Court of Appeals for the Second Circuit on Tuesday issued an opinion supporting an earlier federal court ruling that as long as Donald Trump is a public official, he cannot block people (which prevents them from reading his feed or responding to his comments) he disagrees with on Twitter.