The International Olympic Committee is meeting in Copenhagen on Oct. 2 to choose a host city for the 2016 Summer Games. Chicago faces tough competition from Rio de Janeiro, Madrid and Tokyo.
LaHood is a former Illinois congressman and a native of the state. He'll join first lady Michelle Obama, Education Secretary Arne Duncan and White House senior adviser Valerie Jarrett in Copenhagen.
The White House says a decision has not been made on whether the president will also go to Copenhagen. An advance team traveled there to make preparations in the event he does attend.