PBS News Hour - Season 44 Episode 149 July 26, 2019
Overview: Friday on the NewsHour, election security is again in the forefront after Robert Mueller and a Senate intelligence report warn of the continued threat of Russian interference. Plus: Turmoil continues over national immigration policy, Poland’s democracy at risk, the 2020 campaign trail grows more contentious, analysis of political news with Mark Shields and David Brooks and a violin virtuoso.