If true, that's a bullshit and underhanded way to push their "global warming" agenda. We all know the Democrats like to cry about global warming and fossil fuels and nuclear energy. But their solution is methods that don't do any better. Yet, they're worse as far as output. And to try and match the same output would do more to harm the environment than what we currently have.
So, in my opinion, they want to tax your mileage so they can try and sway you towards an electric car, or driving less; whether by carpooling or byu working from home. But not everyone can work from home. I certainly can't. My job is impossible to do from home. It requires me to drive somewhere. And I'd almost be willing to guarantee they'll hound the larger delivery businesses (Amazon, Walmart, grocery stores, etc.) into going with full electric fleets. Yet the cost for doing that would be absolutely tremendous. And how do you think they'd pay for that cost? They'd raise their prices.....and not by a small amount. So then prices of most things would go up.....again. And the economy would take another hit. But yeah, let's force people and companies to do things that aren't actually good for them. But we'll call it combating global warming so maybe won't notice that the economy has gone to shit. And only when people can't afford the products they actually need, will they take notice. But by then it'll be too late.
If you want to make something absolutely fucked up, put the government in charge of it.