CQ Voting Studies are an annual analysis of a member's support or opposition to a given position. Interest Group Ratings are based on rankings from groups chosen to represent liberal, conservative, business and labor viewpoints.Voting Participation scores are based on the number of times a member voted "yea" or "nay" on roll call votes (not including quorum calls in the House). CQ Vote Studies Year Presidential Support Party Unity   S* O* S O 1998 77% 23% 79% 19% 1997 79 20 87 13 S=Support; O=Oppose
Voting Participation Year % 1998 98 1997 99	Interest Groups Year ADA AFL-CIO CCUS ACU 1998 75% n/a 72% 12 % 1997 85 88 50 20
Note on Interest Groups: ADA=Americans for Democratic Action; AFL-CIO=American Federation of Labor-Congress of Industrial Organizations; CCUS=Chamber of Commerce of the United States; ACU=American Conservative Union

CALIFORNIA 10 : Eastern Contra Costa and Alameda counties

Anyone driving through the Caldecott Tunnel or on Interstate 680 during rush hour will probably be surrounded by 10th District residents on their way to and from work in San Francisco or San Jose. Separated from the rest of the Bay Area by the hills east of Oakland, the 10th's residents are mainly well-educated, well-paid professionals who work outside the district. More than two-thirds of the district's residents live in Contra Costa County, although the 10th excludes most of Concord and all of Richmond, the two largest cities in the county.

The 10th has managed to fend off overdevelopment while keeping pace with the rest of the area economically, giving it a feel significantly different from its more urban neighbors to the west. But the area is at a point where major choices will have to be made regarding the future of development.

Despite its Democratic representative, voter registration is almost evenly split and the 10th is the most Republican district in the Bay Area. The district retains a moderate political character - residents tend to be conscious of pocketbook issues but also share their Bay Area neighbors' views on the environment and other quality of life issues.

Major Industry
Research, utilities, health care

Population
571,979 (1990)

Cities
Livermore, 64,647; Walnut Creek, 62,786; Pleasanton, 57,275 (1996); Antioch (pt.), 62,195 (1990)

People
96% urban; 11% age 65+ (ranks 27 of 52 in state; bottom third nationally); 63% married couples, 29% married couples with children; 36% college educated (ranks fifth of 52 in state; top third nationally); 73% white collar (ranks sixth of 52 in state; top third nationally), 17% blue collar (ranks 44 of 52 in state; bottom third nationally) (1990)

Race
88% white, 2% black, 6% Asian; 9% Hispanic origin (1990)

Median Household Income
$52,378 (ranks first of 52 in state; top third nationally) (1990)

Unusual Features
Lawrence Livermore National Laboratory, one of the country's leading centers of experimental physics research and defense analysis.

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