When is a tax not a tax? When Democrats say so, of course.
Paying more for energy as a result of federal policies is not considered a "tax" because after all, it's not going to be called that. It will be named "Cap and Trade" - but the effect will be exactly the same.
And not only will the poor suffer more from this new tax but, since it is a very regressive idea, the rich will pay much less as a percentage of income.