Environmental Protection Agency

In comments to a Tulsa radio host in February 2016, then-Oklahoma Attorney General Scott Pruitt said he feared President Trump would use executive orders unconstitutionally if he were elected.

Superfund was initially paid for by taxes on crude oil, chemicals and the companies that created the toxic waste sites. But those taxes expired in 1995, leaving states strapped to find the money.

Environmental officials are inspecting toxic waste sites in southeast Texas that were flooded and potentially damaged last week.

There's a push in Congress to rewrite how science gets used in regulation — and that has researchers worried. The industry-backed bill would let business nitpick raw data and ignore valid results.