Video-sharing app TikTok, and its Chinese parent company ByteDance, have filed a legal challenge in the US against a legislative move to force its sale, lest it face a country-wide ban. The petition said the demand violated constitutional guarantees to free speech detailed in the First Amendment, after President Joe Biden signed a bill giving the tech firm nine months to find a non-Chinese buyer. TikTok is estimated to have around a billion users worldwide and roughly 170 million users in the US. The firms argued on Sunday that “Congress has made a law curtailing massive amounts of protected s…
