https://www.scientificamerican.com/article/if-elected-democratic-governors-could-adopt-californias-car-rules/

If Democrats win the keys to the governors’ mansions in several states today, they could defy President Trump by adopting California’s stricter tailpipe pollution rules for cars.

Thirty-six states are set to elect governors today, and 23 of those seats are currently held by Republicans (E&E Daily, Nov. 5).