I will post bits of news I see and offer my opinion - nothing else http://www.reuters.com/article/us-usa-trump-twitter-idUSKBN18X2LR Blocking twitter users might very well be against the constitution but it's also the act of a coward.
Critics can't be banned from his Twitter account? First Amendment protects even offensive speech (at least if it's against Trump): A "public forum"? Did Trump's Twitter account become a "government institution" when he got elected? Twitter needs to impose restrictions on the accounts of celebrities, public figures, government agencies, legislators and officials.