The former vice president won the Super Tuesday state with the second-largest number of delegates. He only spent around $89,000 there, but his resounding win in South Carolina may have been pivotal.
Black voters launched Joe Biden to victory across the South, Latinos were decisive in Sanders' California win and Asian American voters could prove key in the general election.
Former New York Mayor Michael Bloomberg spent more than $500 million to wage a national campaign, starting with the 14 states that held primaries on Tuesday. He lost all of them.
It was a surprise result for the former vice president, who won a majority of states on Super Tuesday. He rode a wave of momentum that may have catapulted him back into front-runner status.
State officials say the overnight twisters damaged buildings and roads across multiple counties. Thousands are without power, and a state of emergency remains in effect.
Fourteen states, a third of all delegates and an emerging race between Sen. Bernie Sanders and former Vice President Joe Biden. Here's what to know about the 2020 contests.
The former vice president won by nearly 30 points in South Carolina, giving him a big claim to being the principal alternative to Bernie Sanders for the Democratic presidential nomination.
A lot is on the line in the 2020 primary debate. It might be the last chance for moderates to slow Bernie Sanders' momentum. And who comes out better — Joe Biden or Michael Bloomberg? Here's a guide.
With the Iowa caucuses and first primaries just weeks away, many voters say they're still confused about how presidential candidates differ on health care. Here's a guide to key issues and terms.
Marco Rubio and Ted Cruz allied to gang up Donald Trump as he was pressed on immigration and foreign policy. John Kasich tried to rise above the fray in the nastiest GOP debate yet.
Donald Trump and Hillary Clinton are expected to roll to victories in the South, leaving their rivals trying to scrape for wins elsewhere on the biggest voting day of the year so far.
In important Super Tuesday states with a high number of born-again voters, Ted Cruz is losing to Donald Trump and Marco Rubio is eating into his support with evangelicals.
The biggest day of the primary season began in the mid-to-late 1980s when Southern Democrats pushed their states to move up to try to stop whom they saw as liberal candidates who couldn't win.
In stump speeches since his loss in South Carolina, Bernie Sanders has taken shots at Hillary Clinton and Donald Trump. He's also seemed to temper his talk of political revolution.
Donald Trump and Hillary Clinton are expected to up their delegate leads and pull away from their rivals. But those aren't the only things that could happen. Be ready for surprises.
In 2008, Clinton suffered a crushing defeat as black voters rushed to Barack Obama — the beginning of the end for her campaign. Now, a win in the state would give her momentum for Super Tuesday.
It's the day when the most states vote and the most delegates are at stake. It can be determinative in who becomes the presidential nominee for either party.
After the conservative magazine declared that it is "Against Trump," it was barred from a Feb. 25 presidential debate. The move shows how delicately the Republican Party is handling Donald Trump.
