Neal Katyal, former Acting U.S. Solicitor General, tells Lawrence O'Donnell it's a "pretty big deal" that the Justice Department’s Inspector General is investigating Roger Stone's sentencing because "the whole thing stinks from start to finish" and Attorney General William Barr “should be forced to testify.” Aired on 09/14/2020. » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, Meet the Press Daily, The Beat with Ari Melber, Deadline: White House with Nicolle Wallace, Hardball, All In, Last Word, 11th Hour, and more. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: http://MSNBC.com/NewslettersYouTube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc Katyal: Barr Should Testify In Inspector General's Investigation Of Roger Stone's Sentencing | MSNBC