It was particularly good because of the DETAIL. He didn't just said "Kerry voted to cut defense," Zell said "He voted against the F-15 that flew protective missions over this city on 9/11," or, "He voted against the B-1 bomber that delivered 80% of the ordinance against Tora Bora." He only had ONE reference amidst all the weapons systems to things used in IRAQ, and everything else was the Gulf War, Afghanistan, or 9/11. Very powerful stuff.
Zell also made it clear that nothing was done about it during Clinton terms, that Americans had been murdered by terrorists for years listing each atrocity.