A bi-partisan letter from U.S. Senators was sent to EPA urging the agency to raise RFS volumes. Paul Winters, director, public affairs and federal communications for Clean Fuels Alliance America, joins us to discuss the details.

<p>A bi-partisan letter from U.S. Senators was sent to EPA urging the agency to raise RFS volumes. Paul Winters, director, public affairs and federal communications for Clean Fuels Alliance America, joins us to discuss the details.</p>

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