Former Los Angeles Mayor and Democratic Convention Chairman Antonio Villaraigosa calls for a vote to amend the platform at the Democratic National Convention in Charlotte, N.C., on Sept. 5, 2012. (Associated Press) ** FILE **

Photo by: J. Scott Applewhite

Former Los Angeles Mayor and Democratic Convention Chairman Antonio Villaraigosa calls for a vote to amend the platform at the Democratic National Convention in Charlotte, N.C., on Sept. 5, 2012. (Associated Press) ** FILE **