Plus it’s unconstitutional so it’s likely the SCOTUS is going to overturn the TikTok ban. So the Senate may conclude that it’s a waste of their time.
AND
This will not survive a 1A challenge at SCOTUS.
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The Biden Administration can just ignore SCOTUS like they did with student loans. Who’s really gonna do anything about it?
At that point, it'll be obvious that Joe Biden is a "dictator" for ignoring the SCOTUS over TikTok. He'll be impeached for it.