Both are currently Republicans in Congress, but Democrats lumped them into a newly redrawn district and made them run against each other.

California's redistricting reshuffle forced Ken Calvert into the 40th District of Young Kim. Now they face off Tuesday.

California’s congressional primaries were a preliminary test of Democrats’ best chance at countering Republican redistricting gains elsewhere this year

California's 40th Congressional district saw a rare battle of incumbents after their districts were carved up under the state's new congressional map.

Calvert, who currently represents California's 41st Congressional District, announced his campaign shortly after California voters passed Proposition 50, which shifted five…

Both are currently Republicans in Congress, but Democrats lumped them into a newly redrawn district and made them run against each other.

Democrats have high hopes in the five districts redrawn last year under Proposition 50. But they haven't had it all their own way.