Republicans and Democrats Endorse Concept, but Gloss Over Details, of Funding Infrastructure With User Fees
A federal mileage-based user fee is still years away, and there's very little political support for a federal gas tax hike.
User fees
Trump, Dems, Business Want a Gas Tax Increase. The President's Economic Advisers Suggest a Better Idea.
Mileage-based user fees would charge drivers for how much road they use, not how much fuel they burn.