It's unclear what Trump will actually do to stop the ban on TikTok. He doesn't become president until the day after the ban goes into effect, and the president-elect can't make any legislative changes — no matter how badly he says he wants to "keep this sucker around."

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US President-elect Donald Trump said that TikTok may have helped reach some key voters in the presidential election and expressed the possibility of keeping the video-sharing app around "for a little while.