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Social media rallies behind Johnny Depp in defamation trial

As Johnny Depp’s defamation trial against his ex-wife Amber Heard plays out in real time on television and across social media, millions of people are pouring over the details of their relationship and rallying behind the actor. NBC News’ Kalhan Rosenblatt breaks down why the trial has become a social media sensation and how users are reacting to the allegations made on both sides.