Who's running? Meet the Democrats making presidential bids

The latest Democrat to enter the 2020 presidential race, former Pennsylvania congressman Joe Sestak, brings the primary field to 25 candidates.

The candidates in the sprawling field range in age from 37 to 89 and include liberals and moderates; senators, governors and mayors; and an unprecedented number of women and minorities.

Democrats view the upcoming election as a must-win, and they're looking to nominate someone who is their best hope to beat President Donald Trump.

Here are the candidates:

MICHAEL BENNET

Age: 54

Best known for: The senator from Colorado gave a scorching speech slamming Republican Sen. Ted Cruz of Texas during the recent government shutdown.

Biggest strength: Bennet is viewed as a wonky, issue-oriented pragmatist who has won tough campaigns, which could be a winning combination for Democratic voters who don't want to veer too far left but are eager to beat Trump.

Biggest weakness: Bennet is not as well known as many other senators competing for the Democratic nomination and has no natural base.

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JOE BIDEN

Age: 76

Best known for: Being former President Barack Obama's vice president from 2009 to 2017 and U.S. senator from Delaware from 1973 to 2009.

Biggest strength: He's well-known nationally and popular in some places Democrats have lost recently, such as working-class swing states Wisconsin, Michigan and Pennsylvania, his birthplace.

Biggest weakness: Biden would be the oldest person ever elected president, with a nearly five-decade record for opponents to comb through, at a time many in his party are clamoring for a new generation to take the reins. The notoriously chatty former senator also tends to commit verbal gaffes and faced recent accusations by some women of uninvited, though...