How much does anyone want to bet it's going to turn out with both retaining the gasoline tax, and instituting this new mileage tax?
One gets the impression the Democrats want to give the impression a mileage tax would replace the gasoline tax, much like the practice of claiming other new state taxes will replace, or at least lower, property taxes.
It never happens. A tax meant to replace one tax inevitably means both the old tax, and the new tax, are imposed.
These are Democrats, after all.