Brian Doherty is a Chicago alderman representing portions of the city's northwest side. He is notable as the only Republican in the Chicago city council. Chicago (officially named the City of Chicago) is the third largest city in the United States (after New York City and Los Angeles), with an official population of 2,896,016, as of the 2000 census. ... The Republican Party, often called the GOP (for Grand Old Party, although one early citation described it as the Gallant Old Party) [1], is one of the two major political parties in the United States. ... The list below includes the aldermen of Chicago in order by ward. ...