#Newsround #DonaldTrump #TikTok #US #JoeBiden #TikTokBan

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Last week President Donald Trump reversed a ban on TikTok in the US, which came into force when Joe Biden was still president.
President Trump has given TikTok's owners ByteDance 75 days to sell its popular app to a US buyer, or it could be banned in the US again.
You've sent us your questions about what is happening with TikTok now, and the BBC's cyber correspondent Joe Tidy has answered.

Please visit www.bbc.co.uk/newsround/13865002 for tips about what to do if you are feeling sad about what you've seen, heard or read.

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