Voters will head to the polls in California, Iowa, Montana, New Jersey, New Mexico and South Dakota.

In California, a congressional candidate with backing from Bernie Sanders is going up against a fellow Democrat with strong establishment support.

Six states — California, Iowa, Montana, New Jersey, South Dakota and New Mexico — hold elections on Tuesday. Here are key races to follow.

California's governor race is lacking star power this year. Big names like Kamala Harris and Alex Padilla have opted out, leaving a crowded field of about 60 candidates.

Voters across the U.S. will visit the polls on Tuesday to decide primary races in California, Iowa, New Jersey, New Mexico, South Dakota and Montana.

Voters will head to the polls in California, Iowa, Montana, New Jersey, New Mexico and South Dakota.

Six states will hold primaries on Tuesday: California, Iowa, Montana, New Jersey, New Mexico and South Dakota. Will a Democrat advance in California’s governor’s race? Can Spencer…