TUESDAY NIGHT: David Muir anchors a special edition of ABC World News Tonight with David Muir as Iran launches an attack on U.S. military facilities in Iraq after a U.S. drone killed Qassem Soleimani, with Ian Pannell reporting from Erbil on the latest details, Martha Raddatz in Tehran where Iranians were vowing revenge and Jonathan Karl at the White House where President Trump is being briefed.https://abcn.ws/2QOryIY | ABC World News Tonight with David Muir

A group of pro-Trump attorneys and supporters have drafted an executive order aiming to give Pres. Trump sweeping unprecedented power over elections, multiple sources tell ABC News. Mary Bruce reports. https://abcnews.link/GzFWhX5 | ABC World News Tonight with David Muir

Lee Goldberg tracks the first major Arctic blast of the season that’s sweeping east, temperatures quickly plummeting on Monday and Tuesday. The South could see record-low temperatures, and wind chills in the Northeast could feel like 20s. https://abcnews.go.com/alerts/Weather | ABC World News Tonight with David Muir