The story

As Rio de Janeiro celebrated the decision to award it the 2016 Summer Olympic Games, pre-vote frontrunner Chicago was in a state of shock as it was the first of the contenders to be eliminated, despite some influential backing.

The International Olympic Committee had gathered at Denmark's modern Bella Center convention hall in Copenhagen to hear the bids from Rio, Chicago, Tokyo and Madrid.

Chicago was widely seen as favorite, even without U.S. President Barack Obama's late appearance in the Danish city to sell his hometown. Read full article »

CNN's Melissa Gray contributed to this report.

All About Summer Olympics