What Rick Gates' plea deal means for the Russia probe

Former Trump campaign aide Rick Gates entered the latest guilty plea in the Russia investigation. As part of a deal cut with special counsel Robert Mueller's office, Gates admitted that he lied to investigators and conspired to conceal unregistered foreign lobby, and also agreed to be a cooperative witness. Lisa Desjardins and Carrie Johnson of NPR join Hari Sreenivasan to discuss the charges.