Catch up with all the guest interviews from NPR's live coverage of the caucuses and primaries in Arizona, Idaho and Utah.

Catch up with all the guest interviews from NPR's live coverage of the primaries in Illinois, Missouri, North Carolina, Florida and Ohio.

More than 300 delegates were at stake Tuesday in primaries and a caucus across four states: Michigan and Mississippi, a Republican primary in Idaho and a Republican caucus in Hawaii.

Bernie Sanders won the Michigan Democratic primary and Hillary Clinton won Mississippi. Donald Trump notched wins on the Republican side ...

If you start typing "Is Ted Cruz..." into Google, before you can even get to the C, Google attempts to auto-complete the sentence. And usually, at least these days, one of the first auto-complete options is a very strange question: "Is Ted Cruz the Zodiac killer?"

Ted Cruz is, of ...

They say when Punxsutawney Phil sees his shadow, it means six more weeks of winter.

When Dixville Notch, in the far northern reaches of New Hampshire, voted just after midnight Tuesday, it didn't predict eight more months of Donald Trump.

But as with Pennsylvania's groundhog, the results — three votes ...