Countdown To Obama Speech In Philly

PhillyClout's Catherine Lucey is standing by at the National Constitution Center to update us about the speech to be given by U.S. Sen. Barack Obama in a few minutes.  Obama's media adviser, David Axelrod, just told reporters the senator was up until 2 a.m. working on the speech, which will touch on race and politics.

Gathered at the center to watch are state Rep. Rosita Youngblood, state Sen. Vincent Hughes, City Councilman Bill Green and former City Councilwoman Carol Ann Campbell.