Stephen Gillers, a professor at NYU Law School, and William Banks, director of the Institute for National Security and Counterterrorism at Syracuse University of Law, discuss the latest news in special counsel Robert Mueller's investigation into Russian interference in the 2016 election. They also discuss President Trump's changing positions on attorney general Jeff Sessions, and whether or not he will be able to keep his job. They speak with June Grasso and Michael Best on Bloomberg Radio's "Bloomberg Law."