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Cook County Board President Democratic Primary

March 17 – March 18, 2026

The Bottom Line

Incumbent Toni Preckwinkle won the Democratic primary for Cook County Board President, defeating Chicago Alderman Brendan Reilly to secure her party's nomination for a fifth term. This election was a choice between progressive and centrist leadership for the county's executive branch and its multi-billion dollar budget. Preckwinkle's victory keeps her in power as the head of the second-most populous county in the United States.

Key Statements

TThe New York Times

Incumbent Toni Preckwinkle wins the Democratic primary for Cook County Board President, defeating moderate challenger Brendan Reilly to secure her party's nomination for a fifth term.

This article confirms the final election result and the historical context of Preckwinkle's fifth term.

CCBS News

Incumbent Toni Preckwinkle faces a primary challenge from Chicago Alderman Brendan Reilly... representing a contest between progressive and centrist leadership.

This source explains the ideological stakes of the primary contest.

5 Articles

Pat Hynes defeats Fritz Kaegi in Democratic primary for Cook County assessor

CBS NewsCenter Left

Pat Hynes upsets Fritz Kaegi in Democratic primary for Cook County Assessor

AxiosCenter

Toni Preckwinkle, Longtime Chicago Democrat, Holds Off Moderate Challenger

The New York TimesCenter Left

Incumbent Cook County assessor and board president face challenges

Chicago TribuneCenter Left

Four-term incumbent Toni Preckwinkle seeks to fend off challenger Brendan Reilly in Democratic primary for Cook County Board President

CBS NewsCenter Left

Analysis generated by AI. Always verify with official sources.