TikTokers Put Hope in Online Campaign to Get Trump to End US Ban

TikTok content creator Tiffany Cianci is doing all she can to persuade President-elect Donald Trump to save the popular social media app, which the government calls a national security risk.

Cianci live-streamed outside the US Supreme Court on Friday, where justices were hearing arguments on whether to uphold the ban. She called on other TikTokers and their followers to join the campaign to flood Trump with messages and support TikTok across social media. A new law requires the app’s China-based owner ByteDance Ltd. to sell its US operations by Jan. 19 or else shut down.

“We don’t need the Supreme ...