TikTok's expected Sunday shutdown poses the biggest threat to the universe of small- and medium-sized firms and so-called influencers who depend on the short-form video site for their livelihood, while big brands are expected to move to other sites.

President Trump says his administration needs time to assess the potential national security threats and find a solution.

TikTok, one of the most popular social media platforms in the United States, has a little more than three months to reach a deal divesting it of Chinese ownership before it goes dark. The app boasts roughly 170 million monthly active users across the country but faces extinction by May if it fails to sell