A lot of people think Chicago is leading the pack as the host city for the 2016 Olympic Games. We're going to get the official announcement about the winning city, in the 12p hour.

Chicago's in the running with Tokyo, Rio de Janeiro and Madrid. We want to hear from you.

Which city do you think should host the games and why? Go to my blog at CNN.com/heidi and share your thoughts. We’ll read some of your answers on CNN Newsroom at 9am and 10am.