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California's 4th congressional district

California's 4th congressional district is a U.S. congressional district in California. The district is located in the northwestern part of the state, and includes all of Lake County and Napa County, most of Yolo County, and parts of Solano County and Sonoma County. Major cities in the district include Davis, Woodland, Napa, Vacaville, and most of Santa Rosa. The district is solidly Democratic, and is represented by Mike Thompson.

Competitiveness
In 2006, Republicans had 48 percent of voter registrations, Democrats had 30 percent, and Libertarians had roughly 5 percent. A Democratic congressional candidate nearly won the district in 2008, losing by only half a percentage point and less than 1,600 votes, indicating that the district was much more competitive than it appeared to be. New district boundaries for the 2012 elections shifted the population center to the south and east. Registered Democrats and Independents/Decline to State voters in the new district area outnumber registered Republicans by 12%. However, Republicans, Independents/Decline to State, and small third parties outnumber Democrats well over a 2 to 1 ratio. There were 183,800 Republicans, 117,300 Democrats, and 97,200 others. In presidential elections, Donald Trump won the district in 2016 with 54% of the vote and won in 2020 with 53.7% of the vote. In the 2018 and 2020 elections, the Republican candidate won over 53% of the vote. In the 2020 redistricting, the district was shifted again to the San Francisco Bay Area. It includes all of Lake County and Napa County, most of Yolo County, and parts of Solano County and Sonoma County. Major cities in the district include Davis, Woodland, Napa, Vacaville, and most of Santa Rosa. The new 4th district is solidly Democratic, and is represented by Mike Thompson. == Recent election results from statewide races ==
Recent election results from statewide races
2023–2027 boundaries ==Composition==
Composition
Under the 2020 redistricting, California's 4th congressional district encompasses Lake, Napa, and Yolo Counties, and parts of Sonoma and Solano Counties. The area in Sonoma County includes the cities of Santa Rosa, Rohnert Park, Sonoma, Petaluma, and Cotati; and the census-designated places Boyes Hot Spring, El Verano, Penngrove, Sonoma State University, Kenwood, Glen Ellen, Eldridge, Fetters Hot Springs-Agua Caliente, and Temelec. The area in Solano County includes the cities of Vacaville, Dixon, and Rio Vista; and the census-designated places Hartley and Allendale. Sonoma County is split between this district and the 2nd district. They are partitioned by Petaluma River, Highway 116, Redwood Highway, Robber Rd, Petersen Rd, Llano Rd, S Wright Rd, W College Ave, Jennings Ave, Administration Dr, Bicentennial Way, Cleveland Ave, Old Redwood Highway, Cross Creek Rd, Sonoma Highway, and Sonoma Creek. Solano County is split between this district and the 8th district. They are partitioned by Soda Springs Rd, Union Pacific, Alamo Dr, Leisure Town Rd, Hawkins Rd, Bay Area Exxextric, Shilo Rd, Collinsville Rd, and Montezuma Slough. Cities and CDPs with 10,000 or more peopleSanta Rosa – 178,127 • Vacaville – 102,386 • Napa – 77,480 • Davis – 66,850 • Woodland – 61,032 • Petaluma – 59,776 • West Sacramento – 53,519 • Rohnert Park – 44,390 • American Canyon – 21,837 • Dixon – 18,988 • Clearlake – 16,685 • Sonoma – 11,024 • Rio Vista – 10,217 2,500 – 10,000 peopleUniversity of California, Davis – 8,525 • Cotati – 7,584 • Winters – 7,195 • Hidden Valley Lake – 6,235 • Boyes Hot Springs – 6,215 • St. Helena – 5,438 • Calistoga – 5,228 • Lakeport – 5,026 • Penngrove – 4,172 • Fetters Hot Springs-Agua Caliente – 4,144 • El Verano – 3,867 • Yountville – 3,436 • Kelseyville – 3,382 • Clearlake Riviera (Kelseyville Riviera) – 3,410 • North Lakeport – 3,314 • Esparto – 3,108 • Lucerne – 3,067 • Esparto – 2,877 • Nice – 2,731 • Sonoma State University – 2,679 • Angwin – 2,633 • Clearlake Oaks – 2,551 • Hartley – 2,510 == List of members representing the district ==
List of members representing the district
==Election results for representatives==
Election results for representatives
1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 In 2018, six Democratic candidates filed statements of candidacy with the Federal Election Commission (FEC). They were, in alphabetical order by last name: Regina Bateson; Roza Calderon; Richard Martin; Robert Lawton; Jessica Morse ; and Rochelle Wilcox. Martin and Wilcox dropped out of the race, with Wilcox endorsing Morse in February. Retired Air Force Lieutenant Colonel Charlie Brown, who was the Democratic nominee for this seat in 2006 and 2008, was "seriously considering" running in 2018, but decided in June 2017 against a third campaign. In January 2018, Brown endorsed Morse for the nomination. Bob Derlet, the Democratic nominee in 2016, also endorsed Morse in January. On the Republican side, McClintock had one challenger, Mitchell Kendrick White , who filed with the FEC in January. In February, the California Democratic Party (CDP) endorsed Jessica Morse in a contested nomination. Roza Calderon was able to successfully collect 322 CDP-credentialed delegate signatures needed to block the endorsement, in which Morse only received 44 delegate votes. However, CDP staff refused to accept the forms after it was alleged they closed doors early to prevent the submission. A petition was later filed with the Compliance Review Commission (CRC) by Calderon. The CRC voted to accept and count the signatures, ultimately disqualifying enough signatures to proceed with Morse's endorsement. California allows candidates to include their professional description under their names on the ballot. Regina Bateson challenged Morse's ballot designation title of "National Security Fellow" at the Sacramento Superior Court after months of controversy that Morse was "fluffing" her credentials. California's Secretary of State, Alex Padilla, struck down Morse's three ballot designations before Judge Gevercer ruled that she presented "no credible evidence" to use the ballot designation of "National Security Fellow". Instead, he held that this title would mislead the average person about her recent activities. In the official Certified Candidate List for the primary election, Morse's ballot designation was left blank. Under the California nonpartisan blanket ("jungle") primary system, only the two candidates with the most votes on June 5, regardless of party, went on to the general election on November 6. Two Republicans and four Democrats appeared on the primary ballot. In the November general election, McClintock held the district with an advantage of more than eight percentage points. 2020 2022 2024 ==See also==
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