Congress passed a bill that could ban TikTok. Now comes the hard part.

A bill that would force a sale of TikTok by its Chinese owner, ByteDance — or ban it outright — was passed by the Senate on Tuesday and is expected to be signed quickly into law by President Biden.

Now the process is likely to get even more complicated.

Congress passed the measure citing national security concerns because of TikTok’s Chinese ties. Both lawmakers and security experts have said there are risks that the Chinese government could lean on ByteDance for access to sensitive data belonging to its 170 million U.S. users or to spread propaganda.

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