Vice President Joe Biden was the keynote speaker. He noted that despite being the nation's No. 2 leader, there is a tougher job, that of big city mayor.
Chicago hosts Global Cities forum
April 27, 2009 (CHICAGO)
Mayors and municipal leaders from around the world are attending the three day summit at the University of Illinois-Chicago.
They are presenting their own city's innovative strategies and exchanging ideas on a number of topics.