U.S. presidential candidates are nominated based on a complex system of primaries, caucuses and delegates. How the presidential nominating system works and the delegate math for this year's candidates.
Republican primary voters go to the polls in South Carolina while Democrats vote in the Nevada caucuses. Analysis of the results and what they mean for the presidential candidates heading into Super Tuesday.
Apple fights a court order to unlock the iPhone of one of the San Bernardino shooters. President Obama and Republicans battle over the Supreme Court vacancy. And presidential hopefuls woo voters in South Carolina and Nevada. A panel of journalists joins guest host Cecilia Kang for analysis of the week's top national news stories.
Voter turnout in primaries and caucuses is typically low — but this time may be different. Several candidates are counting on the motivation of nontraditional primary voters. We discuss who's likely to vote in the early contests and why it matters.
Nine Republican hopefuls meet in Las Vegas for the final GOP debate of the year. Donald Trump has his biggest lead ever in the polls but Ted Cruz tops him in Iowa. How the candidates fared and what it means for the GOP presidential nomination.
Donald Trump continues to top Republican presidential polls and will be center stage for the upcoming debate. Diane and guests discuss voter discontent and the demographic trends driving the 2016 presidential race.
Donald Trump's call to ban Muslims from entering the U.S. has touched off a rift within the Republican party: What the split between the base and party leaders means for the future of the GOP and the 2016 presidential race.
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