Civil rights leader Jesse Jackson endorses Bernie Sanders

Jackson will appear alongside Sanders in Grand Rapids, Michigan, on Sunday.

• Mar 8, 2020

Kamala Harris endorses onetime rival Joe Biden

Harris said in a statement that Biden "reflects the decency and dignity of the American people and who can ultimately defeat Donald Trump."

• Mar 8, 2020

Protester interrupts Bernie Sanders rally with Nazi flag

Sanders supporters quickly ripped the flag from his hands and the man was escorted out of the building by security. Sanders later called the incident "beyond disgusting."

• Mar 6, 2020

Elizabeth Warren dropping out after disappointing Super Tuesday finish

In a call with campaign staff Thursday morning, Warren said her campaign "has made a lasting difference."

• Mar 5, 2020

Sanders says Biden should be nominee if he wins delegate plurality

There are nearly 4,000 pledged delegates up for grabs in the 2020 Democratic primaries and a candidate needs 1,991 to win the party's presidential nomination.

• Mar 5, 2020

Sanders says "of course I'm disappointed" after Super Tuesday

"'Have we been as successful as I would hope in bringing young people in?' ...The answer is no."

• Mar 4, 2020

Biden sweeps South, but California leans toward Sanders

All the states that voted Tuesday have been called by CBS News except California.

• Mar 4, 2020

Biden declared presumptive winner of Maine Democratic primary

Biden leads Bernie Sanders in the national delegate race with 584 pledged delegates to the senator's 509.

• Mar 4, 2020

How much did Mike Bloomberg spend per delegate? About $18 million

At the time of his departure from the race, after spending $570 million on ads, Bloomberg had amassed just 31 pledged delegates, meaning he had spent about $18 million per delegate earned.

• Mar 4, 2020

Lawmakers push for Secret Service protection for 2020 Dems

The request comes after two anti-dairy protesters stormed the stage while Biden was delivering remarks in Los Angeles on Tuesday.

• Mar 4, 2020

Bloomberg drops out, endorses Biden after Super Tuesday

On Super Tuesday, when voters in 14 states and one U.S. territory went to the polls, Bloomberg won just one contest: the caucuses in American Samoa.

• Mar 4, 2020

Biden sweeps South in Super Tuesday comeback as Sanders stays strong in California

A broad coalition of support helped propel Biden to victory across the South, as well as in states such as Minnesota and Massachusetts.

• Mar 4, 2020

Super Tuesday exit polls: Highlights from the race

CBS News surveys of voters leaving the polls highlight some of the key strengths of Joe Biden and Bernie Sanders in the Super Tuesday primaries this week.

• Mar 4, 2020

Jill Biden springs into action, bodyguard-style as vegan protesters charge Joe Biden

The former vice president's campaign national press secretary, Symone D. Sanders, rushed the stage during the altercation.

• Mar 4, 2020

California primary presents golden opportunity for Democratic hopefuls

California, which votes on Super Tuesday, offers the biggest delegate prize of the primary season, with more 400 delegates at stake.

• Mar 3, 2020

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