Stocks plummet for the second day, wiping out trillions as Pres. Trump’s tariffs shock global trade, and his own allies and supporters show signs of concern and panic. MSNBC’s Ari Melber reports. (The Beat's YouTube playlist: https://msnbc.com/ari Beat merch: https://msnbc.com/Beat5) For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/msnbc » Subscribe to MSNBC on TikTok https://www.tiktok.