California's new truly open primary held Tuesday could result in single-party matchups in November for eight of the state's 53 U.S. House seats.
While some results remained unofficial Wednesday morning, five congressional districts were certain to have Democrat-vs.-Democrat races on Nov. 6, while a sixth looked likely; two districts could have Republican-vs.-Republican contests.
When voters go to the polls in California's primary on Tuesday, instead of only being able to vote for candidates in their own party, they will be able to vote for anyone they please.
Tuesday will be the first statewide test of California's new open primary system, where the top two candidates move on to the general election, regardless of party. Backers hope this system will favor moderates.
In California, there aren't very many purple areas. The state has strongly Democratic regions and strongly Republican regions — and the Democrats dominate.