Twenty-eight California congressional or legislative races Tuesday pitted candidates of the same party against each other, a development made possible by the state's new top two primary system.
U.S. Rep. Brad Sherman easily beat congressional colleague Howard Berman in one of the most closely watched same-party races featuring two Democratic candidates.
Eight California congressional races featured same-party candidates - six pitting Democrats against each other, two Republicans.
The Assembly decided 18 same-party races - 11 Democrat, seven Republican.
In the Senate, Democrats squared off in two districts, but there were no all-GOP races.
Congressional returns in same-party races early Wednesday morning showed the following:
Congressional District 8 - Republican Paul Cook over Gregg Imus, 16 percentage points.
Congressional District 15 - Democrat Eric Stallwell over U.S. Rep. Fortney Pete Stark, 6 percentage points.
Congressional District 30 - Sherman over Berman, 21 percentage points.
Congressional District 31 - U.S. Rep. Gary Miller over Bob Dutton, 10 percentage points, in an all-GOP duel.
Congressional District 35 - Democrat Gloria Negrete McLeod over U.S. Rep. Joe Baca, 10 percentage points.
Congressional District 40 - Incumbent Lucille Roybal-Allard over Democrat David Sanchez, 18 percentage points.
Congressional District 43 - Democratic incumbent Maxine Waters over Bob Flores, 42 percentage points.
Congressional District 44 - U.S. Rep. Janice Hahn over fellow Democratic incumbent Laura Richardson, 20 percentage points.
Senate District 13 - Democrat Jerry Hill over Sally Lieber, 34 percentage points.
Senate District 15 - Democrat Jim Beall over Joe Coto, 16 percentage points.
District 1 - Republican Brian Dahle over Rick Bosetti, 30 percentage points.
District 2 - Democrat Wes Chesbro over Tom Lynch, 27 percentage points.
District 5 - Republican Frank Bigelow over Rico Oller, 6 percentage points.
District 6 - Republican incumbent Beth Gaines over Andy Pugno, 38 percentage points.
District 10 - Democrat Marc Levine narrowly led Michael Allen, 1 percentage point.
District 18 - Democrat Rob Bonta narrowly led Abel Guillen, 2 percentage points.
District 19 - Democrat Phil ting over Michael Breyer, 16 percentage points.
District 20 - Democrat Bill Quirk narrowly led Jennifer Ong, 2 percentage points.
District 23 - Republican Jim Patterson over Bob Whalen, 10 percentage points.
District 39 - Democrat Raul Bocanegra over Richard Alarcon, 18 percentage points.
District 47 - Democrat Cheryl Brown over Joe Baca Jr., 12 percentage points.
District 50 - Democrat Richard Bloom narrowly led incumbent Betsy Butler, less than 1 percentage point.
District 51 - Democrat Jimmy Gomez over Luis Lopez, 20 percentage points.
District 59 - Democrat Reggie Jones-Sawyer over Rodney Robinson, 6 percentage points.
District 62 - Incumbent Democrat Steven Bradford over Mervin Evans, 44 percentage points.
District 67 - Republican Melissa Melendez narrowly led Phil Paule, less than 1 percentage point.
Distict 72 - Republican Travis Allen over Troy Edgar 12 percentage points.
District 76 - Republican Rocky Chavez over Sherry Hodges, 16 percentage points.
* Altered Thursday to reflect that Rocky Chavez is a Republican.