Obama also posted a similar announcement message to his nearly 19 million fans on Facebook.

奥巴马也在Facebook上发了一条类似的消息给他将近一千九百万的粉丝。

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Four years ago, then-Senator Barack Obama tried a similar tactic, announcing his VP pick with text message, and that announcement was scooped too.

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When Sony wants to make an announcement, they need only post a message to their Twitter feed, Facebook page, or their own blog.

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He praised the Arriva Trains Wales staff for their "excellent work" and thanked them for allowing him to briefly use the station announcement system to draw attention to his message.

BBC: Wales politics