Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40 percent of all residents of Illinois live within Cook County. As of 2020, the population was 5,275,541. The county seat is Chicago, the most populous city in Illinois and the third most populous city in the United States. The county is at the center of the Chicago metropolitan area.
Ward Committeepeople and Township Committeepeople are political party officials who serve many standard committeemen duties on behalf of their political party in Cook County, Illinois.
Timothy O. Schneider is the former chairman of the Illinois Republican Party and a former member of the Cook County Board of Commissioners representing the 15th district, which includes all or parts of Arlington Heights, Barrington, Barrington Hills, Bartlett, Elgin, Elk Grove Village, Hanover Park, Hoffman Estates, Inverness, Mount Prospect, Rolling Meadows, Roselle, Schaumburg, South Barrington and Streamwood.
The 2020 United States Senate election in Illinois was held on November 3, 2020, to elect a member of the United States Senate to represent the State of Illinois, concurrently with the 2020 U.S. presidential election, as well as other elections to the United States Senate, elections to the United States House of Representatives and various state and local elections and the Illinois Fair Tax. Incumbent Democratic Senator Dick Durbin, who had been Senate Minority Whip since 2015, won reelection to a fifth term in office, defeating Republican nominee Mark Curran.
Bradley A. Stephens is a Republican Party politician currently serving as state representative from the 20th district within the Illinois General Assembly and the village president (mayor) of Rosemont, Illinois.
The Cook County, Illinois, general election was held on November 3, 2020. Elections were held for Clerk of the Circuit Court, State's Attorney, Cook County Board of Review district 1, three seats on the Water Reclamation District Board, and judgeships on the Circuit Court of Cook County.
The Cook County, Illinois, general election was held on November 2, 2010.
The Cook County, Illinois, general election was held on November 7, 2006.
James E. O'Grady is a former law enforcement official who served as Superintendent of the Chicago Police Department and Sheriff of Cook County, Illinois.
Michael F. Sheahan is an American politician and sheriff. He formerly served as Sheriff of Cook County, Illinois and as a Chicago alderman.
The Cook County, Illinois, general election was held on November 3, 1998.
The Cook County, Illinois, general election was held on November 6, 1990.
The Cook County, Illinois, general election was held on November 4, 1986.
The Cook County, Illinois, general election was held on November 8, 1994.
Cook County Board of Commissioners 17th district is a single-member electoral district for the Cook County Board of Commissioners. It is currently represented by Sean M. Morrison, a Republican. It is the only seat on the Board of Commissioners that is currently represented by a Republican.
Cook County Board of Commissioners 15th district is an electoral district for the Cook County Board of Commissioners. It is currently represented by Kevin B. Morrison, a Democrat.
Cook County Board of Commissioners 14th district is a single-member electoral district for the Cook County Board of Commissioners. It is currently represented by Scott R. Britton, a Democrat.
Sean M. Morrison is an American politician currently serving as Cook County commissioner from the 17th district and the chair of the Cook County Republican Party.
Herbert T. Schumann, Jr. is an American politician who formerly served as a Cook County commissioner from 1990 to 2002.
Brendan Francis Houlihan is an American politician who served a single term as commissioner on the Cook County Board of Review from the 1st district from 2006 to 2010.
