USA Today: The president makes unprecedented use of Twitter, having posted more than 24,000 times on his @realDonaldTrump account to 31.7 million followers. by Mike Snider
'His tweets about domestic and foreign policy — and media coverage of him and his administration — has transformed Twitter into a public forum with free speech protections.
'That's the opinion of two Twitter users, who have the backing of the Knight First Amendment Institute, founded a year ago by the non-profit John S. and James L. Knight Foundation to preserve the First Amendment in the digital age. They are sending a letter today to the White House asking Trump to unblock them on his @realDonaldTrump Twitter account.
'Both users say they were blocked recently after tweeting messages critical of the President. Holly O'Reilly (@AynRandPaulRyan), whose Twitter account identifies her as a March for Truth organizer, said she was blocked on May 23 after posting a GIF of Pope Francis looking and frowning at Trump captioned "this is pretty much how the whole world sees you."'