TikTok and WeChat downloads in the U.S. might be banned by Sunday. Oracle, Bytedance and Walmart are on the clock to find a deal for the TikTok’s U.S. business that President Trump will approve. CNBC’s Eamon Javers and Deirdre Bosa explain the TikTok soap opera, and Insider’s Henry Blodget discusses the app battle’s implications for President Trump’s relationship with China. Former FDA head Dr. Scott Gottlieb underlines the key for a safe, effective vaccine. Plus, Friday sports bets, and brainstorming Squawk Box’s first viral dance video.