Senator Bernie Sanders leads the delegate race after a win in the Nevada caucuses. MSNBC’s Ari Melber reports on how Sanders has taken “the widest victory margin of any race thus far” and how people can debate "polls" and rhetoric about the "frontrunner" but “measurable delegate count is what matters to winning.” This report also features historical context from previous elections, showing how candidates from both parties went on to win the nomination after leading the delegate count heading into Super Tuesday. (This interview is from MSNBC’s “The Beat with Ari Melber, a news show covering politics, law and culture airing nightly at 6pm ET on MSNBC. http://www.thebeatwithari.com). Aired on 02/24/20. » 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 'The Frontrunner': Bernie Sanders Opens Up Big Delegate Lead After Nevada Blowout | MSNBC