SALT LAKE CITY, UT - APRIL 21: Sen. Bernie Sanders (D-VT) pumps his fist after he spoke to a crowd of supporters of about three thousand at a Democratic unity rally at the Rail Event Center on April 21, 2017 in Salt Lake City, Utah. Sanders and Perez are holding several rallies around the country trying unify the Democratic party. (Photo by George Frey/Getty Images)
