article: 2018 United States Senate election in California
links: Napa County, California Monterey County, California Fresno County, California Santa Barbara County, California Del Norte County, California Colusa County, California Democratic Party (United States) Lake County, California San Bernardino County, California San Diego County, California Alpine County, California San Francisco County, California Madera County, California Shasta County, California Alameda County, California Santa Clara County, California Tulare County, California Glenn County, California Solano County, California Riverside County, California Kern County, California Mariposa County, California Los Angeles County, California Humboldt County, California San Benito County, California Contra Costa County, California Nevada County, California Imperial County, California Ventura County, California Yuba County, California San Mateo County, California Placer County, California Modoc County, California Lassen County, California Dianne Feinstein San Joaquin County, California Tuolumne County, California Amador County, California Trinity County, California El Dorado County, California Sutter County, California Sierra County, California Mendocino County, California Republican Party (United States) Sonoma County, California Marin County, California Merced County, California Rocky De La Fuente Inyo County, California San Luis Obispo County, California Tehama County, California Siskiyou County, California Kevin de León Sacramento County, California Stanislaus County, California Orange County, California Plumas County, California Yolo County, California Incumbent Butte County, California Mono County, California Calaveras County, California Kings County, California Santa Cruz County, California