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All 17 seats on the Cook County Board of Commissioners 9 seats needed for a majority | ||||||||||||||||||||||||||||
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Results: Democratic gain Democratic hold Republican hold Vote Share: 50–60% 70–80% 80–90% >90% 50–60% | ||||||||||||||||||||||||||||
The 2018 Cook County Board of Commissioners election was held on November 6, 2018,[1] and was preceded by primary elections held on March 20, 2018.[2] It saw all seventeen seats of the Cook County Board of Commissioners up for election to four-year terms and coincided with other 2018 Cook County, Illinois, elections (including the election for president of the Cook County Board of Commissioners).
Anticipating a potential wave election year for Democrats, President of the Cook County Board of Commissioners and Cook County Democratic Party Chairwoman Toni Preckwinkle made a focused effort to increase the Democrats' majority on the Cook County Board of Commissioners, focusing these efforts on three of the Board's four Republican-held seats. Preckwinkle-backed Democratic nominees ultimately succeeded in ousting Republican incumbents in the 14th and 15th districts, but fell roughly a mere 2,000 votes shy of unseating the 17th district's Republican incumbent.[3] Preckwinkle did not target the Republican-held 9th district seat, as the incumbent Republican, Peter N. Silvestri, was both popular and a political centrist and had a reputation for being a peacemaker on the Board at times when conflict arose between its members.[4] Democrats ran candidates for all seventeen seats, compared to the fifteen seats that the party had contested in the preceding 2014 election. Meanwhile, Republicans ran candidates for eight seats, and increase from the five seats they had contested in the 2014 election.
Seven new members were elected,[5] and ten incumbents were reelected. Three incumbents did not seek reelection. Four incumbents lost reelection, with two being defeated in primaries and the other two losing their general elections.
Two races saw seats change party, in both instances seeing an incumbent Republican losing to a Democratic challenger, creating a net gain of two seats for Democrats and a net loss of two seats for Republicans. Nine races saw a Democrat unchallenged in the general election.
- ^ Cite error: The named reference
combinedgeneralelectionsummarywas invoked but never defined (see the help page). - ^ Cite error: The named reference
combinedprimarysummarywas invoked but never defined (see the help page). - ^ Schorsch, Kristen; Mihalopoulos, Dan (November 7, 2018). "'Blue Wave' Swamps Two Cook County Board Republicans". WBEZ Chicago. Retrieved March 17, 2023.
- ^ Schorsch, Kristen (September 19, 2022). "Republicans look to keep what few seats they have on the Cook County Board". WBEZ Chicago. Retrieved March 17, 2023.
- ^ Donavan, Lisa; Pratt, Gregory (November 7, 2018). "In Cook County Board races, Republican strongholds lose grip to blue wave — and a lot of green". chicagotribune.com. Chicago Tribune. Retrieved March 20, 2020.