Kornacki: You don't see incumbents ‘lose by this kind of margin every day' after Cornyn defeat

NBC News Chief Data Analyst Steve Kornacki joins Meet the Press NOW to break down results from the Republican primary runoff in Texas where Attorney General Ken Paxton beat four-term incumbent Sen. John Cornyn. NBC News White House Correspondent Monica Alba, Phil Prazan, KXAS's "Lone Star Politics" co-anchor, and Jessica Taylor, the Cook Political Report Senate and Governors Editor, discuss if Democrats have a chance to win the Senate. For more context and news coverage of the most important stories of our day, click here: https://www.nbcnews.com » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Subscribe to Here's the Scoop podcast: https://www.nbcnews.com/heres-the-scoop-daily-podcast » NBC News App: https://apps.nbcnews.com/mobile » Breaking News Alerts: https://link.nbcnews.com/join/5cj/breaking-news-signup?cid=sm_npd_nn_yt_bn-clip_190621 » Visit NBCNews.Com: http://nbcnews.to/ReadNBC » Find NBC News on Facebook: http://nbcnews.to/LikeNBC » Follow NBC News on Twitter: http://nbcnews.to/FollowNBC » Follow NBC News on Instagram: http://nbcnews.to/InstaNBC