Redistricting in California

A gerrymandered congressional district, the 11th CD of CA, drawn to favor Republican Richard Pombo. While the Danville area is a traditional Republican stronghold, Morgan Hill is not, and it was added to obtain the proper population numbers for the 11th after Livermore was assigned to the 10th at the behest of the incumbent Democrat, since it contains the Lawrence Livermore National Laboratory (located near the "580" shield) and she sat in the House Energy Committee. The 10th CD is immediately north of the 11 in Contra Costa and Solano Counties See text below and the California's 11th congressional district election, 2006 for an unexpected result that overcame this gerrymander.
Carved out with the aid of a computer, this congressional district is a product of California's incumbent gerrymandering. This is the district of Democrat Grace Napolitano, who ran unopposed in 2004.

Redistricting in California has historically been highly controversial. Critics have accused legislators of attempting to protect themselves from competition by gerrymandering districts. Conflicts between the governor and the legislature during redistricting often have only been resolved by the courts.

After incumbent parties retained every single state assembly, senate, and congressional seat in the 2004 election, voters passed California Proposition 11 (2008). The proposition created a Citizens Redistricting Commission to draw state legislative districts. California Proposition 20 (2010) expanded the Commission's power to include drawing congressional districts.