Tonight's the last debate before the South Carolina primaries, but it's also the last before Super Tuesday, which includes California and its 494 delegates.

The Nevada caucuses were Saturday, and Vermont Sen. Bernie Sanders came out ahead by 25 points, and with 42 percent of the nonwhite vote.

Tomorrow are the Nevada caucuses, and Nevada Democrats are hoping for them to run far more smoothly than the ones in Iowa. Candidates battle for that top spot and voting continues.

Six candidates took the debate stage -- former New York Mayor Mike Bloomberg for the first time last night in Las Vegas. He took lots of heat, but so did many of the candidates.

Tonight's the Las Vegas debate, ahead of this weekend's Nevada caucuses. Some candidates are trying to regain the spotlight and others are trying to keep momentum.

Former New York Mayor Mike Bloomberg is climbing national polls, but facing much more scrutiny than he had in the early states, which he skipped. Texas is going to come into play for him -- as the state with the second-largest Super Tuesday trove of delegates.

Nevada's experiment with early caucusing is underway until tomorrow. Some candidates plus some Nevada Culinary Workers Union Local 226 members oppose Medicare for All, but Vermont Sen. Bernie Sanders defends it, with a study just published making the case for it.