Where's my carbon tax again

Matthew Yglesias also notes the bizarre disappearance of a carbon tax from the debate over the debt ceiling.

This is another Democratic failure. The Democrats should be holding to the line that our number one concern now is jobs, not deficit reduction. They should trade stimulus now for future spending cuts. A carbon tax ought to be part of their long-range plan for what to do with the tax code - surely in a sane world we could all agree that as long as we're taxing people to finance our government, we should be taxing consumption instead of labor, and consumption of fossil fuels most of all.