Asked by a reporter if he felt at all bad about the results in Iowa, the GOP candidate said: "There's a tinge."
It's 2013, and Hillary and Jeb were going to skate to their parties' nominations. Didn't work out that way.
Late opinion polls showed Trump with a small lead on Senator Ted Cruz.
The town hall comes as Hillary Clinton and Bernie Sanders are neck and neck in the polls.
Given the energy needed to produce ethanol, it may consume more in fossil fuels than the energy it yields.