Voters head to the polls on Super Tuesday

It's arguably the biggest day in the primary voting process-here's everything you need to know about Super Tuesday 2016. Case in point: African-Americans made up 30 percent of the 2008 Democratic primary electorate, a significant factor in pushing Virginia to a blue state. Democrats will vote in 11 states and American Samoa, with 865 delegates up for grabs.

There are two kinds of delegates: pledged, who must vote based on primary and caucus results; and unpledged, or super, who are permanent delegates and can vote for whom they please at the conventions. These five states (and one territory also voting that day) account for 367 delegates - many of which, again, could go in a lump sum to one candidate - while the 12 states voting on Super Tuesday account for 624 - and will, again, be divvied up proportionally.

There have been election events for both parties in four states: Iowa, New Hampshire, Nevada and SC. She has a chance to essentially seal the nomination with a strong performance on Tuesday, while Bernie Sanders is looking to score some badly needed upsets and keep the race going. Get state by state results as they come in on Let's take a look. Although Donald Trump is running ahead in most of those states, the delegates will most likely be spread among the candidates unless Trump manages more substantial wins than he has had to date.

Hillary Clinton Far Ahead In Latest Poll Of Arizona Democrats
With reporting from 99 percent of precincts, Hillary Clinton stood at 73.5 percent compared with 26 percent for Sanders. Four-hundred-and-fifty-three say they will vote for Clinton to a mere 20 who pledge to vote for Sanders.

Democratic Primaries are being held in Alabama, Arkansas, Georgia, Massachusetts, Minnesota, Oklahoma, Tennessee, Texas, andVermont, Virginia. Voters from both parties will gather at schools and community centers across the state to make pitches for their favored candidate, then cast a secret ballot. Polls in Arkansas close at 8:30 p.m ET, while Texas, Colorado, and Minnesota will close at 9 p.m. The only contest that will end past the bedtime of most viewers is Alaska, where polls close at 1 a.m. ET.

March 1, labeled Super Tuesday, will determine the playing field for the rest of the presidential election.

On that very same day - March 4, 2008 - in the other party, John McCain was clinching the Republican nomination. The state didn't gain prominence in presidential politics until the 2008 and 2012 elections. Most have backed Clinton, but could change allegiance.