Id suspect yes
As a video editor, I can say that if you already have the concept of the commercial, voiceovers can be scripted, approved, and recorded in a half-day. Grab some stock footage & still shots, canned music, and a good editor with good equip can have a decent political ad in the can in 1 - 2 days.
The Repubs can easily do the same.
Kerry referred to this "missing weapons cache" during the October 8th debate in St. Louis. Went over everyones heads at the time because the conspiracy between Kerry, El Baradei, CBS and NY Times had not come full circle yet.