Over the years, Hillary Clinton has voted against subsidies and mandates for corn ethanol in the Senate a number of times. If you know anything about corn ethanol, you know that’s a good thing.

When Clinton released her (otherwise excellent) energy plan this week, it contained a whole boatload of … subsidies and mandates for corn ethanol. That is, conversely, a bad thing.

Obama’s campaign took the opportunity to bash Clinton for it — not for switching from a sensible position to a more politically convenient but substantively wrong position, but for … having the sensible position in the first place. How can we trust that she’s truly committed to this awful position? they asked.

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This prompted an explanation from Clinton that is nothing short of tortured:

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This is what we’ve come to in the strange world of ethanol politics: a presidential candidate furiously trying to explain away her previous good sense. Sigh. I can’t wait until the Iowa primary is over.