In 2008, California voters approved Proposition 11 — the Voters First Act. The act established an independent commission to construct new district boundaries for the state legislature and State Board of Equalization. Voters there acted again in 2010 to approve the Voters First Act for Congress (Proposition 20), giving the commission further responsibility to redraw congressional district boundaries. Though not the first state to employ such a measure, California is the largest state to empower its citizens this way.
The commission consists of 14 members — 5 Democrats, 5 Republicans, and 4 members not affiliated with either political party. In drawing the districts, the commission must follow a commonly imposed hierarchy of guidelines: equal population among districts; adherence to the Voting Rights Act; geographic contiguity, geographic integrity of city, county, and local neighborhood boundaries, as well as communities of interest; and geographic compactness. In addition to these guidelines, there are also prohibitions against consideration of an incumbent’s or candidate’s place of residence or partisanship in drawing the districts.