Bernie Sanders: You can’t win them all

Bernie Sanders speaks at a acampaign event in Virginia Beach, Virginia on the night of the South Carolina primary.

Bernie Sanders: You can't win them all

2020 Democratic presidential candidate Bernie Sanders speaks to supporters in Virginia Beach, Virginia, as results roll in from South Carolina's primary ahead of Super Tuesday.

00:58 - Source: CNN

2020 South Carolina primary 14 videos

Bernie Sanders speaks at a acampaign event in Virginia Beach, Virginia on the night of the South Carolina primary.

Bernie Sanders: You can't win them all

00:58

Now playing

- Source: CNN

biden speaks SC primary 0229

Joe Biden celebrates win in South Carolina primary

01:15

Now playing

- Source: CNN

COLUMBIA, SOUTH CAROLINA - FEBRUARY 29: Democratic presidential candidate former Vice President Joe Biden speaks at his primary night event at the University of South Carolina on February 29, 2020 in Columbia, South Carolina. Biden is the projected winner of South Carolina, the first-in-the-south primary and the fourth state in the presidential nominating process. (Photo by Scott Olson/Getty Images)

What Biden's win could mean for Super Tuesday votes

02:22

Now playing

- Source: CNN

bloomberg charlotte rally

Bloomberg: We don't need a debater-in-chief

00:49

Now playing

- Source: CNN

tom steyer drops out 02292020

Steyer: I can't see a path where I win the presidency

00:57

Now playing

- Source: CNN

Democratic presidential candidate businessman Tom Steyer speaks during the McIntyre-Shaheen 100 Club Dinner, Saturday, Feb. 8, 2020, in Manchester, New Hampshire.

Tom Steyer: The billionaire Democrat in the tartan tie

01:41

Now playing

- Source: CNN

terry mcauliffe 02292020

Ex-DNC chairman reveals his endorsement after Biden's win

02:41

Now playing

- Source: CNN

andrew yang 2 29 2020

Yang: Bloomberg campaign made a crucial mistake

01:18

Now playing

- Source: CNN

Democratic presidential candidate, former vice President Joe Biden speaks to the audience during a town hall on November 21, 2019 in Greenwood, South Carolina. Polls show Biden with a commanding lead in the early primary state.

CNN projects Joe Biden wins South Carolina primary

01:05

Now playing

- Source: CNN

South Carolina primary GOP voter vpx_00004728.jpg

She voted for Trump in 2016. See which Democrat she voted for now.

01:58

Now playing

- Source: CNN

Reckoning Crew South Carolina 1

Biden or Sanders? In South Carolina, it may come down to age

04:07

Now playing

- Source: CNN

A man walks out of a voting booth during the New Hampshire Primary at Parker-Varney Elementary School, Tuesday, Feb. 11, 2020, in Manchester, N.H. (AP Photo/Andrew Harnik)

How some conservatives plan to disrupt South Carolina primary

03:06

Now playing

- Source: CNN

Joe Biden Sumter SC 02282020

Undecided voter asks Biden 'what is your fire?'

01:57

Now playing

- Source: CNN

Democratic presidential candidate Sen. Amy Klobuchar speaks on stage during a forum on gun safety at the Iowa Events Center on August 10, 2019 in Des Moines, Iowa.

Compromise got Amy Klobuchar this far. Will it work in 2020?

06:23

Now playing

- Source: CNN