Members of the California Citizens Redistricting Commission study a district map under consideration during a hearing held in Sacramento in July. The commission produced a vastly different congressional map from what state lawmakers drew up in 2001, which essentially preserved nearly every incumbent district and deleted just one Republican district. (Associated Press)

Members of the California Citizens Redistricting Commission study a district map under consideration during a hearing held in Sacramento in July. The commission produced a vastly different congressional map from what state lawmakers drew up in 2001, which essentially preserved nearly every incumbent district and deleted just one Republican district. (Associated Press)