Romney-conomist Greg Mankiw wants a further $2/gallon gas tax?

Economic Policy Journal:

As the price of gasoline soars, top Mitt Romney adviser, Harvard economist Greg Mankiw sticks to his guns and calls for a hike in gasoline taxes. In a recent blog post, Mankiw points to a WaPo column which states:

N. Gregory Mankiw, former top economic adviser to President George W. Bush and current adviser to Republican presidential candidate Mitt Romney, also backs a stiff gas tax increase… In a New York Times column this year, Mr. Mankiw offered a tax overhaul that might include a gas tax “exceeding” $2 per gallon.

I don’t think that’s going to be too popular. It’s not clear from that snippet that he’s adding an additional $2 on top of what’s already there, but if that’s what he’s proposing, Romney’s got some explaining to do. Not much more to that post, but good snark at the end.