NBC News provided up-to-the-minute coverage of the seventh Democratic presidential primary debate at Drake University in Des Moines, Iowa.
Tuesday's debate stage was the smallest one yet, with many of the candidates who appeared on stage in previous debates either failing to qualify or dropping out of the race.
Hosted by CNN and the Des Moines Register, the debate featured six candidates: former Vice President Joe Biden, Sen. Bernie Sanders of Vermont, Sen. Elizabeth Warren of Massachusetts, Sen. Amy Klobuchar of Minnesota, billionaire Tom Steyer, and former Mayor Pete Buttigieg of South Bend, Indiana.
Read about all the highlights below.
Dave Chappelle endorses Andrew Yang
Yang isn't on the debate stage tonight, but he had some good news: an endorsement from comedian Dave Chappelle.
'Who is Brianne Pfannenstiel?' and everything else Google shows us about tonight's debate
You might be wondering just who Brianne Pfannenstiel is, according to Google.
Searches for Pfannenstiel are up a whopping 4,200 percent (granted from what is probably a very small initial amount) ahead of tonight's debate.
Pfannenstiel, 31, is the top political correspondent for The Des Moines Register and a moderator for the debate, alongside CNN's Wolf Blitzer and Abby Phillip.
As for how the candidates stack up against each other in terms of Google searches, Bernie Sanders currently retains the top spot, followed by Warren, Biden, Buttigieg and Steyer.
ANALYSIS: Sanders needs to light a fire now. The question is whether he can control the blaze.
Sen. Bernie Sanders has stepped up an undeclared war on his top rivals for the Democratic presidential nomination — and left himself open to counterattack — because it's do-or-die time for him.
Sanders, I-Vt., and his supporters are tangling with former Vice President Joe Biden over foreign policy, trade and race, and with Sen. Elizabeth Warren, D-Mass., over policy purity, elitism and whether he said a woman can't win the presidency. The skirmishes rile up his base at the expense of alienating other Democrats.
While that's a strategy that makes more sense here and in other early primary states, where a relatively small but committed army of supporters can deliver victory, it risks a severe backlash now or over the long run.
Yet Sanders' best shot starts with his taking the Feb. 3 Iowa caucuses, following up with wins in New Hampshire and Nevada and riding a wave to a majority of delegates before the party's convention in Milwaukee in July.
That is, he needs to light a fire now. The question is whether he can control the blaze.
Iowa roiled by Democratic infighting weeks before first-in-nation vote
DES MOINES, Iowa — This isn't how the home stretch before the Iowa caucus was supposed to go.
Sen. Bernie Sanders, I-Vt., seemed to have been telegraphing a willingness to take on former Vice President Joe Biden for his judgment on the Iraq War, amid the escalating tensions with Iran. That was the singular focus until the conflict between Sanders and fellow progressive Sen. Elizabeth Warren bubbled into a fever pitch in the days leading up to the debate on Tuesday night here.
The very public rift marks a sea change in a winnowing Democratic field, less than three weeks before Iowans are set to caucus on Feb. 3.
And the crux of the Sanders-Warren conversation — about whether a woman can beat Trump — also highlights uncomfortable questions about perceived "electability" and brings about the specter of Hillary Clinton's 2016 loss. In conversations with a dozen Democratic operatives and aides, there appears to be little appetite for, and much hand-wringing over, these topics of conversation — on Clinton, on 2016 or on electability and gender.
Read more here.
January Democratic debate: Everything you need to know
The seventh Democratic presidential debate is set for Tuesday night, and it will be the smallest — and least diverse — debate to date.
The field of candidates has been shrinking, and the front-runners' campaigns have been taking on a tougher tone with one another, with even old friends Bernie Sanders and Elizabeth Warren butting heads.
The debate is the last before the Iowa caucus on Feb. 3. The two candidates who've been sniping at each other the most in recent weeks, former Vice President Joe Biden and Sanders, the independent senator from Vermont, will be standing side by side on center stage.