 Ahead of the election , the Rio de Janeiro bid committee lodged an official complaint against Madrid with the IOC <unk> Commission about comments made on September 30 , 2009 , by José Maria Odriozola , vice president of the Spanish Olympic Committee ( <unk> ) ; and considered doing it against Chicago due to comments by Richard M. <unk> , Mayor of Chicago , on September 21 , 2009 . Odriozola called Rio de Janeiro " the worst of the four candidates " , while Rio officials believe that <unk> implied that the city was incapable of hosting the Olympics when he said it was " not the same as hosting the [ 2014 ] FIFA World Cup " . Mercedes <unk> apologised for Odriozola 's comments on behalf of the Madrid bid committee . According to the IOC rules , rival cities are not allowed to directly <unk> other bidders . After the conclusion of the bid process , <unk> <unk> , Governor of Tokyo , blamed " invisible dynamics " and political deals for Tokyo 's failure . Rio officials repudiated " the inappropriate statements " and sent a formal <unk> to the IOC on October 6 , 2009 . On November 30 , 2009 , the Hollywood actor Robin Williams caused embarrassment due to humorous comments made in an interview with David Letterman . During the Late Show with David Letterman , broadcast by CBS , Williams said that Rio de Janeiro was elected as host city because it sent " 50 <unk> and a pound of blow " to compete with Michelle Obama and Oprah Winfrey , from Chicago . The comments were widely criticized by the Brazilian media and government authorities . 
