There's actually been a lot of good news on the clean energy front this past fall, at the state and local levels, of course.
The way the 2020 Democratic primary and election goes will obviously be a big deal, though, because regardless of what the states do, what happens at the federal level is more important to influence what other countries will do, particularly China and India. Most of the Democratic candidates appear to have at least decent energy policies, though.
As is already happening on some places, the focus should be on getting rid of coal plants, stop building gas plants, and primarily deploy renewables, while electrifying transportation and other sectors to a significant extent.