During coverage of the Pennsylvania special election, Brian Williams likens Steve Kornacki to a scene from "A Beautiful Mind." » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc About: MSNBC is the premier destination for in-depth analysis of daily headlines, insightful political commentary and informed perspectives. Reaching more than 95 million households worldwide, MSNBC offers a full schedule of live news coverage, political opinions and award-winning documentary programming -- 24 hours a day, 7 days a week. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Google+: http://on.msnbc.com/Plusmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc Follow MSNBC on Tumblr: http://on.msnbc.com/LeanWithmsnbc This Is Genius At Work. | Steve Kornacki | MSNBC