PBS News Hour S44 E143 July 18, 2019

Thursday on the NewsHour, President Trump holds an incendiary rally on the heels of his earlier attacks against four members of Congress. Plus: Former Sen. Jeff Flake on Trump’s rhetoric and Republican support, a database reveals the true scope of the opioid crisis, the potential risks of FaceApp, moving the Smithsonian into the future, craft cannabis and the black experience in documentary film.