Friday on the NewsHour, a targeted U.S. attack in Baghdad kills a top Iranian general, raising ongoing tensions between the U.S. and Iran to new heights. Plus: American lawmakers respond to the killing of Qassam Soleimani, what’s next for the U.S. and Iran after Soleimani’s death, disinformation on the 2020 campaign trail and Mark Shields and David Brooks analyze the week’s political news.