Twitter in freefall after White House bans several news organisations from attending a press briefing - notice the wording from Reuters:
www.reuters.com/article/us-usa-trump-media-idUSKBN1632JG?utm_source=twitter&utm_medium=Social
"Spicer's off-camera briefing, or "gaggle," replaced the usual televised daily news briefing on Friday in the White House briefing room. He did not say why those particular news organizations were excluded, a decision which drew strong protests"
"Off-camera gaggles are not unusual. The White House often invites handpicked outlets in for briefings, typically for specific topics. But briefings and gaggles in the White House are usually open to all outlets and they are free to ask anything."