Super Tuesday In ColoradoA voter holds his ballot in Denver, Colorado on Super Tuesday on March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoAn election judge talks to children as their father fills out paperwork at the Denver Elections Division in Denver, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Bernie Sanders SupportersSupporters cheer as they watch a televised address from Democratic presidential candidate Vermont Senator Bernie Sanders on Super Tuesday, March 3, 2020 in Denver. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA commuter drops off her ballot before work outside Union Station on March 3, 2020 in Denver. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoA commuter drops off his ballot before work outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoVoters wait to cast their ballots inside the Denver Elections Division's Haul-n-Vote mobile trailer in Denver, Colorado on Super Tuesday on March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA voter drops of her ballot at the Idaho Springs City Hall in Idaho Springs, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoDENVER, CO - MARCH 03: A voter drops off ballots with election officials outside the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoElection judges sort ballots at the Jeffco Elections Division in Golden, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Bernie Sanders SupporterA voter wears a pair of Bernie Sanders socks while registering to vote at the Blair-Caldwell African American Research Library on Super Tuesday, March 3, 2020 in Denver. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA voter drops off his ballot for the presidential primary election at the Idaho Springs City Hall in Idaho Springs, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Bernie Sanders SupportersPhone bank volunteers call potential voters from the Colorado campaign office of Democratic presidential candidate Vermont Senator Bernie Sanders on Super Tuesday, March 3, 2020 in Denver, Colorado. - Fourteen states and American Samoa are holding presidential primary elections, with over 1400 delegates at stake. Americans vote Tuesday in primaries that play a major role in who will challenge Donald Trump for the presidency, a day after key endorsements dramatically boosted Joe Biden's hopes against surging leftist Bernie Sanders. The backing of Biden by three of his ex-rivals marked an unprecedented turn in a fractured, often bitter campaign. (Photo by Jason Connolly / AFP) (Photo by JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA voter casts her ballot at the Jeffco Elections Division in Golden, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoDENVER, CO - MARCH 03: A voter drops off her ballot with election officials outside the Barnum Recreation Center on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Bernie Sanders SupportersPhone bank volunteers call potential voters from the Colorado campaign office of Democratic presidential candidate Vermont Senator Bernie Sanders on Super Tuesday. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoDENVER, CO - MARCH 03: A voter drops off her ballot with election officials outside the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoA commuter drops off his ballot before work outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoDENVER, CO - MARCH 03: Ballot security team members Tim Shea (L) and Bob Kozarek collect mail-in ballots in a box outside the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoBallot security team members Tim Shea (L) and Bob Kozarek collect mail-in ballots in a box outside the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoBallot security team member Bob Kozarek walks a ballot box into the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoA commuter carries his ballot to a drop box before work outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoDENVER, CO - MARCH 03: An elections official hands out voting stickers outside the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoMichael Vinluan (L) and Nathan Rasmussen carry their ballots to a drop box before work outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoCommuters drop off their ballots before work outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoBailee Manzer carries her ballot to a drop box outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoA commuter carries his ballot to a drop box outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoVoters wait to cast their ballots at the Denver Elections Division on Super Tuesday, March 3, 2020 in Denver. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA commuter checks his ballot before dropping it off at at a drop box outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoA voter drops of her ballot at the Idaho Springs City Hall in Idaho Springs, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoMichael Adair walks his dog, Calvin, to a ballot drop box outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoA cyclist drops off his ballot before work outside Union Station on March 3, 2020 in Denver. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoJosh Oden drops off his ballot before work outside Union Station on March 3, 2020 in Denver. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoRush hour traffic passes by the Denver Elections Divisions Haul-n-Vote mobile trailer in Denver, Colorado on Super Tuesday on March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoElection ballots are sorted by machine at the Jeffco Elections Division in Golden, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoVoters wait to cast their ballots inside the Denver Elections Division's Haul-n-Vote mobile trailer in Denver, Colorado on Super Tuesday on March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoVoters wait to cast their ballots inside the Denver Elections Division's Haul-n-Vote mobile trailer in Denver, Colorado on Super Tuesday on March 3. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA voter drops off his ballot for the presidential primary election outside the Denver Elections Division in Denver, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoAn election judge sorts ballots at the Jeffco Elections Division in Golden, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA voter drops off his ballot for the presidential primary election at the Idaho Springs City Hall in Idaho Springs, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA voter waits to cast his ballot at the Denver Elections Division in Denver, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoI VOTED stickers to be issued to voters who cast their ballot at the Denver Elections Division in Denver, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoA woman carries her ballot to a drop box before work outside Union Station on March 3, 2020 in Denver, Colorado. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
Super Tuesday In ColoradoElection judges sort ballots at the Jeffco Elections Division in Golden, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoElection judges sort ballots at the Jeffco Elections Division in Golden, Colorado on Super Tuesday, March 3, 2020. (credit: JASON CONNOLLY/AFP via Getty Images)
Super Tuesday In ColoradoDENVER, CO - MARCH 03: An elections official hands out voting stickers outside the Barnum Recreation Center on March 3, 2020 in Denver, North Carolina. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday. (Photo by Michael Ciaglo/Getty Images)
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