Over 20 dead in U.S. polar vortex, President Trump says he will move ahead on wall without Congress, and in cold weather, how often should I start my car.

Temperatures plunge to lowest levels in decades, lawmakers seek to break immigration impasse, and it's so cold in Wisconsin, even the bars are closing.

Jonathan Erdman from the Weather Channel gives us the latest on the freezing temperatures gripping the Midwest.

250 million in USA will see freezing temperatures, momentum grows for legislation to end government shutdowns, and things you shouldn't leave in your car in subzero weather.

Low-income residents around the country are struggling with the deep freeze. Katie Zezima from the Washington Post gives us a look.