NBC Nightly News Full Episode - July 17

Tonight: 100 million Americans are facing dangerous wildfire smoke from Canada. That smoke is now on the move and smothering new U.S. cities. We'll have the serious health warning from officials. Plus, after walls of water tore through the Texas Hill Country, the flooding emergency is not over yet. We're in Kerr County with a first look at the mass destruction there. And in a primetime address to the nation President Trump castigated the security of the U.S. election system. Critics called out his speech for lacking new evidence to support his claims. Plus Taylor Farms says they are voluntarily removing all iceberg lettuce from the U.S. market sourced from one Mexican farm. Taco Bell says they have removed all Taylor Farms lettuce from their restaurants and supply chain nationwide. And finally in our Great Americans segment we'll sit down with actor and comedian John Leguizamo and how he landed a pivotal role in Christopher Nolan's "The Odyssey" playing in theaters nationwide this weekend. 00:00 Intro 02:54 100 million Americans facing dangerous wildfire smoke 06:09 New flooding emergencies in Texas 08:26 Trump calls for new election security measures 10:43 Gas prices rise as U.S. and Iran escalate attacks 12:23 Taylor Farms and Taco Bell removes iceberg lettuce amid parasite outbreak 14:17 Violent shootout between Florida deputies and gunman 17:10 Great Americans: John Leguizamo’s Odyssey 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 #BreakingNews #News #politics