“A broad bipartisan majority of the Senate voted [on June 15, 2011] to end more than three decades of federal subsidies for ethanol. . . . [At the time,] Gasoline blenders [received] a tax credit of 45 cents for every gallon of ethanol they blend[ed] with motor fuel. The amendment would have repealed that as well as a tariff of 54 cents a gallon on imported ethanol. . . . The tax breaks . . . cost about $6 billion a year. The House [was] expected to reject the repeal as unconstitutional because tax bills must originate in that chamber, and the White House opposes it. But the 73-27 vote signals that once-unassailable programs could be vulnerable. [The intent was] to end subsidies for wealthy interest groups and [to make some] cuts before slashing social-welfare programs. [Thirty three] Republicans joined 40 Democrats and Independents in supporting [the] repeal. (E)thanol has come under increasing fire from diverse groups, including food industry groups concerned about rising corn prices and environmentalists who had concluded corn ethanol wasn't an effective way to reduce greenhouse gas emissions.”
The full essay is at "Ethanol Subsidies."