With Elon Musk's acquisition of Twitter looming, it seems like the latter is reviewing its policies around perma-bans. It's unclear if this is related to Musk's recent criticism of the policy though.
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In an interview, Elon Musk has stated that he would unban Donald Trump from Twitter if his acquisition completes. He called the original decision "morally wrong", "foolish", and "flat-out stupid".