Norquist views rolling back the subsidy on ethanol producers as a tax increase. A handful of Senators (R) led by Coburn are poised to push back a bit. Not sure if any D Senators ever signed Norquist's 'drown it in the bathtub' pledge.
Does Norquist perhaps have more power than an unelected guy ought to?
This piece by O'Donnell starts out slow (as his usually do) but there's some good stuff later:
http://www.msnbc.msn.com/id/21134540/vp/42672317#42672317