Chicago Mayor Richard M. Daley surrounded by 2016 committee members and supporters smiles during a press conference Friday, Sept. 25, 2009, in Chicago, before he heads to Copenhagen, Denmark, for next week's 2016 Summer Olympic host city announcement. Already on track to be the city's longest-serving mayor, it would cement Daley's legacy as one of the nation's most powerful mayors if Chicago beats out Tokyo, Madrid and Rio de Janeiro for the Games.