Are U.S. Mayors the New Leaders of the Democratic Party?

Aired: 9/5/2012 | 0:08:53 | Clip
Atlanta Mayor Kasim Reed, Houston Mayor Annise Parker and Antonio Villaraigosa, mayor of Los Angeles and chair of the Convention, talk to Judy Woodruff and Gwen Ifill about the boom of city migration in the last few decades, how major metropolitan centers drive the U.S. economy and how local governments resolve major conflicts.