TikTok asks Facebook to support its challenge against Donald Trump's ban

Facebook CEO Mark Zuckerberg said recently that he felt a TikTok ban would set a "bad long-term precedent" for the tech industry

TikTok is asking social-media competitor Facebook Inc. for support in its legal challenge against President Donald Trump’s plan to ban the Chinese-owned video app in the U.S.

Adam Mosseri, who runs Facebook’s Instagram photo-sharing app, tweeted Friday that a TikTok ban, which the Commerce Department announced earlier, “would be quite bad for Instagram, Facebook, and the internet more broadly.” Commerce Secretary Wilbur Ross said Friday that TikTok and Tencent’s WeChat will be banned from U.S. app stores starting Sunday.

TikTok’s interim Chief Executive Officer Vanessa Pappas replied to Mosseri’s tweet, asking the company to join its legal fight against the