“Under every plausible scenario,” he said, “the negative 
    effect economically would be quite small relative to the 
    economic benefits that would come from a successful 
    prosecution of the war. The key issue is oil, and a 
    regime change in Iraq would facilitate an increase in 
    world oil, which would tend to lower oil prices for us.” 

    "The key issue is oil, and a regime change in Iraq would 
    facilitate an increase in world oil," which would tend to 
    lower oil prices, he said.