While what you suggest most likely will not happen, I've always felt that gasoline taxes (whether at the federal level or the state level) were some of the most regressive taxes on the books, with the working poor being the most affected. If liberals really supported the working poor and middle classes as much as they claim to, they would really hammer on this. But of course we know that their real goal is to collect as much tax revenue for the state as humanly possible.
Well said.