The Obama campaign readily admits that White House hopeful Sen. Barack Obama (D-Ill.) recently recorded a portion of the Oct. 2, 2002, anti-Iraq war speech he originally delivered at an outdoor rally in Chicago for a new ad that went online Thursday.

There is no good audio tape of the speech, which is playing a pivotal role in the Obama campaign. But the campaign used a sound effect to create the impression one was listening to the original speech.