On CNN's State of the Union, new Transportation Secretary Sean Duffy joins Jake Tapper to discuss the latest in the investigation into the deadly midair collision in Washington, DC. Jake also challenges Duffy over President Trump's claims that diversity initiatives were to blame for the accident. Then, Virginia Sen. Tim Kaine joins Jake to voice his concerns about overcrowding at Reagan National Airport and Trump's handling of the disaster. They also discuss Elon Musk's growing role in the federal government. Finally, Democratic Rep. Yassamin Ansari, former Republican Congresswoman Jaime Herrera Beutler, and political commentators Brad Todd and Bakari Sellers join Jake to break down Trump's new trade war with Mexico and Canada and Democrats' struggle to respond to Trump's actions so far. Learn more about your ad choices. Visit podcastchoices.com/adchoices