McCain: "I will open every market in the world to Iowa's agricultural products. I will also eliminate subsidies to ethanol and other products..." He challenges opponents on subsidies, saying they can't be fiscal conservatives if they support subsidies.

On NAFTA: Giuliani: "The reality is that NAFTA is a good thing.:"

Thompson: a good thing. Doesn't talk in specifics.

Tancredo: NAFTA is a disaster.

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