As Super Tuesday, the single biggest day of voting gets underway, the candidates are competing across 15 contests for a treasure chest of delegates, which will be awarded across geographically and racially diverse parts of the country.
The stakes could not be higher as Democrats face a significant turning point in the 2020 presidential race and are tested on a national scale.
Across 14 states -- Alabama, Arkansas, California, Colorado, Maine, Massachusetts, Minnesota, North Carolina, Oklahoma, Utah, Tennessee, Texas, Vermont and Virginia -- and one territory, American Samoa, 1,344 delegates are up for grabs.
Here's how the day is unfolding. Please refresh for updates.
5:40 p,m.: Racial and ethnic groups are worth watching at the state level
Racial and ethnic groups are worth watching at the state level, ABC News' Director of Polling Gary Langer points out. Turnout among blacks should be important given their vast support for Biden in South Carolina, where they accounted for 56 percent of primary voters and backed Biden over Sanders by 61-17%. Preliminary results tonight find black turnout highest in Alabama 44%, North Carolina 27%, Virginia 27% and Tennessee 26%.
Hispanics accounted for just 5 percent of voters in the early states overall, rising to 17 percent in Nevada. They’re expected to account for many more voters in two states – Texas 32% in 2016 and California 30% in 2008, the last year for which we have exit poll data. We’ll update with tonight’s figures as those data come in.
Before today, Hispanics voted for Sanders over Biden by 41-20% overall, and by 50-17% in Nevada, where they were particularly young, 55% younger than 45 and supportive of single-payer government health care, two strong Sanders groups.
5:12 p,m.: Here's some math to ponder
As ABC News Deputy Political Director MaryAlice Parks writes: "On Tuesday night alone, more than 30% of all of the Democratic Party’s pledged delegates are up for grabs in some of the largest states in the union: California has 415 delegates, Texas has 228. Virginia and North Carolina are also voting, both of which have double the number of delegates compared to South Carolina. When the dust settles from the Super Tuesday states, 1499 delegates will have been awarded."
With so much of the delegate pool at stake in one night, will a single candidate walk away with a lead in delegates that is hard to catch or will the math shake out to show a great divide that could take months to heal and process?sonos sonos One (Gen 2) - Voice Controlled Smart Speaker with Amazon Alexa Built-in - Black read more
Read more of her take here.
5 p.m.: Everything you need to know, but were afraid to ask, about Super Tuesday
Wondering which states vote, when polls close and other pertinent Super Tuesday info?
Well, as ABC News' Meg Cunningham writes, since there is no national primary voting day, Super Tuesday is as close as it comes. The end of the day's voting will bring major delegate allocations and answer some of the questions looming over the Democratic primary.
Read more here
Super Tuesday live updates: Voters in 14 states and 1 US territory head to the polls originally appeared on abcnews.go.com
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