Article Photos: Now it's Democrats' turn to make presidential case



A worker crosses the main stage at Time Warner Cable Arena during the public unveiling of Democratic National Convention's facilities in Charlotte, N.C., Friday, Aug. 31, 2012. (AP Photo/Chuck Burton)

A worker crosses the main stage at Time Warner Cable Arena during the public unveiling of Democratic National Convention's facilities in Charlotte, N.C., Friday, Aug. 31, 2012. (AP Photo/Chuck Burton)