President-elect Obama will not be campaigning directly on Chicago's behalf. But he is expected to meet with the International Olympic Committee before it makes its decision in October.
"If you don't have a president or prime minister on behalf of your bid process going to Copenhagen then it seems like the United States or a country is not supportive and that is very vital to our bid process to be very frank. That is the quarterback that's coming over for the touchdown," said Daley.
On Tuesday, the Chicago City Council approved the use of property taxes to help pay for additional police patrols, street cleaning and other services during the summer games.