Democratic presidential candidate Joe Biden attends Caucus Night event

Democratic presidential candidate for 2020 former Vice President Joe Biden makes remarks as his wife Dr. Jill Biden applauds during an address to supporters at a Caucus Night event, at Drake University in Des Moines, Iowa, Monday, February 3, 2020. Results were slow being reported late into the evening from Iowa's first-in-the-nation caucuses. Photo by Mike Theiler/UPI