Elizabeth Warren

The Democrats debated for the 10th time Tuesday night and it was a bit of a mess. There was shouting. There was overtalk. There were lots of attacks.

So what to make of that muddle? Here are four takeaways that emerged as the dust settled.

1. Joe Biden was focused on the win in South Carolina

South Carolina is a must-win for the former vice president after disappointing finishes in Iowa, New Hampshire and Nevada. He came into the debate with a game plan and executed it the best he could.

Sen. Bernie Sanders of Vermont is leading the pack in the Democratic presidential primary race as he and six other candidates debate in South Carolina on Tuesday.

The South Carolina primary is on Saturday, with 54 delegates up for grabs. Currently, Sanders has the most delegates, with former South Bend, Ind., Mayor Pete Buttigieg in second, and former Vice President Joe Biden in third.

Days before the South Carolina primary, seven Democratic candidates will face off in a debate in Charleston, S.C.

The debate comes after Sen. Bernie Sanders handily won the Nevada caucuses, won in New Hampshire and tied in Iowa.

Here's what you need to know:

When is the South Carolina Democratic debate? Tuesday, from 8 to 10 p.m. ET.

Where is the debate being held? Charleston.

What channel is the debate on? CBS and streaming online on CBSN.

The 2020 Democratic nomination is now Sen. Bernie Sanders' to lose.

The independent from Vermont ⁠— who is running as a Democrat and often speaks about the ills not just of Republicans, but also of Democrats ⁠— handily won the Nevada Democratic caucuses.

Updated at 8:48 p.m. ET

Vermont Sen. Bernie Sanders has won the Nevada caucuses, according to an Associated Press projection.

The win gives Sanders victories in two of the first three states to weigh in on the 2020 Democratic presidential nomination. His other win was in New Hampshire, and he also ended in a near-tie atop the still-muddled Iowa caucuses.

The Democratic presidential primary is heading west for the third contest in the 2020 race. Nevada Democrats are hoping their caucuses avoid similar problems that plagued Iowa earlier this month.

Follow NPR's coverage for the latest updates, analysis and results as the caucuses get underway.

In Las Vegas — a city known for prize fights — the Democrats were gloves off.

And a new entrant in the ring took a lot of incoming: former New York City Mayor Michael Bloomberg, who has spent more than $300 million of his own money on ads to raise his profile.

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It's showtime in Las Vegas. Democratic presidential candidates are debating for the ninth time for the 2020 campaign, but it's former New York City Mayor Mike Bloomberg's first time on stage.

Three days before the Nevada caucuses, six Democratic candidates will face off in a debate Wednesday night in Las Vegas.

The televised debate comes on the heels of a new NPR/PBS NewsHour/Marist Poll that shows Vermont Sen. Bernie Sanders leading nationally, with 31% support among Democratic-leaning voters.

Trailing Sanders in second in the survey is billionaire and former New York City Mayor Michael Bloomberg, with 19% backing.

Updated at 7:08 a.m. ET

Vermont Sen. Bernie Sanders has opened up a double-digit lead in the Democratic nominating contest, according to a new NPR/PBS NewsHour/Marist poll.

Sanders has 31% support nationally, up 9 points since December, the last time the poll asked about Democratic voters' preferences.

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