More importantly than president: Down ballot. Start with your local representative and non federal positions. Local elections usually have less party lines and you may find political alignment there.
The Presidency is mostly a sock puppet for the military industrial complex. We aren’t catching lightning in a bottle there.
The company did the dumping and then sold it off for $1 for a school to be built upon it. They were held liable. They also created other environmental disasters elsewhere. White Lake Michigan, for instance.
Hooker Chemical Company gave no fucks, and should not be given tacit approval or any credit.