Obama ad will have live portion


Wednesday night's Barack Obama primetime ad will contain a live segment near the end of the telecast.

The Democratic candidate is in Florida tomorrow and teaming with former president Bill Clinton for the first time on the campaign trail. The live portion will be broadcast from an evening rally, though it's not clear if Clinton will share the stage during the segment.

"The entire half hour is being fed live to various outlets from a site in Florida," a source said. "They'll be feeding a tape for most of the broadcast and then a live portion at the end."

Though having a live portion is more technically challenging and potentially more risky for the Obama campaign, the move is likely to boost viewership. It also further explains why the Obama campaign insisted on having all its ads run during the same time period.

Read more at James Hibberd's The Live Feed