Nicolle Wallace discusses the new information on questionable privacy decisions made by Trump administration national security officials as fallout continues from Signalgate, Senator Cory Booker's marathon speech on the Senate floor, while Trump shows no signs of stopping his targeting of law firms that employ his perceived critics as another one capitulates, and more. Joined by: Sen. Chris Murphy, Mike Schmidt, Mary McCord, Kristy Greenberg, Nick Miroff, Tim Miller, Marc Elias, John Heilemann, and Ruth Ben-Ghiat.