http://www.washingtonpost.com/blogs/the-switch/wp/2018/05/23/no-twitter-still-doesnt-have-to-abide-by-the-first-amendment-even-if-trump-does/

President Trump violated the constitutional rights of Americans when he blocked some of his Twitter followers after they criticized him politically, a federal judge ruled Wednesday.

The ruling by Judge Naomi Buchwald identifies, for the first time, parts of Trump's Twitter account as a public forum that's subject to First Amendment protections.