Article Photos: Clinton boosts Obama in rousing convention speech



San Antonio Mayor Julian Castro speaks to delegates at the Democratic National Convention in Charlotte, N.C., on Tuesday, Sept. 4, 2012. (AP Photo/Lynne Sladky)

San Antonio Mayor Julian Castro speaks to delegates at the Democratic National Convention in Charlotte, N.C., on Tuesday, Sept. 4, 2012. (AP Photo/Lynne Sladky)