RICHARD M. DALEY: "Today I am announcing that I will not seek a seventh term as mayor of the city of Chicago. Simply put, it is time. It is time for me, it is time for Chicago, to move on. Improving Chicago has been the ongoing work of my life. I loved every minute of it."

Mayor Daley's father, Richard J. Daley, was also mayor for many years. He was first elected in nineteen fifty-five. Over the years he played an influential part in national politics in the Democratic Party. Richard J. Daley led Chicago for twenty-one years. He died in office in nineteen seventy-six, thirteen years before his son became mayor.

Another of his sons, John Daley, is a Cook County commissioner. And another son, William Daley, is now chief of staff to President Obama. Remember? That's the job Rahm Emanuel held until last October.

VOICE TWO: Mayor Daley led improvements in the downtown, lakefront and North Side areas. He put a garden on the roof of City Hall. And he supported the building of Millennium Park near Lake Michigan. People go there for music, theater, ice skating and other entertainment.

But in two thousand nine, even with support from President Obama, Chicago lost its campaign to host the Summer Olympics. Olympic organizers chose Rio de Janeiro for twenty-sixteen, awarding the games to South America for the first time.

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BOB DOUGHTY: Chicago's next mayor, Rahm Emanuel, says he wants make the streets safer, especially for children on their way to school. Gangs are a problem, and in the past few years a number of young people have been attacked by other young people.