CEDAR RAPIDS, IOWA - DECEMBER 21: Democratic presidential candidate Sen. Elizabeth Warren (D-MA) speaks to guests during a campaign stop at the CSPS cultural center on December 21, 2019 in Cedar Rapids, Iowa. The 2020 Iowa Democratic caucuses will take place on February 3, 2020, making it the first nominating contest for the Democratic Party in choosing their presidential candidate to face Donald Trump in the 2020 election. (Photo by Scott Olson/Getty Images)
