Democrats

Democrats believe a perfect storm of the first female presidential nominee coupled with Donald Trump as a foil will help them take back the Senate with female challengers.

Donald Trump and Hillary Clinton will be picking very different running mates. Here are 14 people in six categories they could choose from.

According to NPR's general-election ratings, Clinton starts with a big advantage over Trump based on history and demography. But we also find at least two paths for him to win — and two ties.

His single-payer health care plan would cost an estimated $32 trillion, according to the Tax Policy Center. And it's not balanced out enough by tax increases.

The Vermont senator tells NPR he will stay in until June, despite the likelihood of Hillary Clinton being the Democratic nominee.

If Donald Trump wins most of Indiana's delegates, his path to the nomination will be clear. Even if Bernie Sanders wins the state, he will likely wake up with less of a chance of being the nominee.

The unfavorable numbers for Democrats look pretty bad lately. Their one silver lining: The GOP's look even worse.

Vermont Sen. Bernie Sanders needs to win all remaining contests by 20-percentage points to overtake Hillary Clinton in the delegate race. How he proceeds will affect the legacy of his campaign.

The stakes are high for both Hillary Clinton and Donald Trump. Clinton hopes New York can help make it clear she will be the nominee. Trump needs a big day to get closer to his magic delegate number.

Data from exit polls conducted this primary season suggest Clinton has a clear advantage with women voters. If that holds up, what does it mean for her candidacy?