CLEAN: Chicago seeks Olympic glory in 2016

Chicago is making a strong case to host the 2016 Summer Games, backed by an endorsement from U.S. President Barack Obama. He promises that Chicago will make America proud if chosen. The city plans to minimize environmental impact by utilizing existing sports complexes and temporary venues. However, a local poll indicates that 45% of Chicagoans oppose the idea. If successful, it would be Chicago's first time hosting the Olympics and the ninth time the Games are held in the United States.

What was the main reason for Chicago's bid to host the 2016 Summer Games?

Who endorsed Chicago's bid for the 2016 Summer Games?

What potential benefit did Chicago claim regarding the environmental impact of hosting the Games?

What percentage of the city was against the idea of hosting the Games according to a recent local poll?

How many times have the Olympics been held in the US before the proposed 2016 Games?