(in response to Congressional Budget Office Report, the congressman stated that any decision to extend the volumetric ethanol excise tax credit should consider the credit's "very high cost to taxpayers"; the congressman noted that the credit "is by far the largest renewable energy tax expenditure and will cost $7.6 billion this year" before it expires on December 31, 2010; this amount is in addition to the $41.2 billion in current dollars that has been spent in tax-based subsidies on the credit for ethanol since 1980).