Carson flip-flops on using oil subsidies for ethanol

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Dr. Ben Carson, who is leading the corn-rich state of Iowa in many polls, said during Wednesday's Republican presidential primary debate he wants to eliminate all government subsidies, including ethanol subsidies.

It's a reversal for Carson, who said earlier this year he was in favor of slashing subsidies for oil companies to pay for ethanol subsidies. During Wednesday's debate, Carson said he was "wrong" when he took his original position.

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