Top Story with Tom Llamas - July 24 | NBC News NOW

Justice Department sues Texas over a floating barrier in Rio Grande intended to deter migrant crossings, deadly reacord breaking heatwaves sweep the U.S., and boating accidents throughout the U.S. leave some dead and others injured. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: Breaking News Alerts: Visit : htt