Democratic and Republican presidential candidates took off for New Hampshire just before a "dangerous" winter storm walloped Des Moines and turned the Tuesday morning commute into a miserable trek.
Traffic moves through snow along U.S. 20 in Dubuque, Iowa on Feb. 2.
The National Weather Service has issued a winter storm warning until early Wednesday for a stretch of Iowa starting in the southwest corner, through central Iowa and into much of the northeast region of the state.
A de-icing team prepares a commercial jet during severe weather at Denver International Airport on Feb. 2. The powerful winter storm has shut down highways in eastern Colorado, closed many schools and slowed down traffic at Denver International Airport.
Tom Ryan guides his bicycle along a street as a heavy snowfall moves through the area in Madison, Wisconsin on Feb. 2.
A dog on a leash makes its way through the snow near the Golf and Country Club in Dubuque, Iowa, on Feb. 2.
Nicole Brennan shovels the sidewalk outside her home as the massive snowstorm hits Winona, Minnesota on Feb. 2.