US Supreme Court backs Obama/EPA strengthened mercury rule

It's a win for clean air and water, and against phony states rights advocacy, too, since toxic mercury emissions do not honor borders drawn on maps:

A month after it hobbled the Obama administration’s signature regulation on climate change, the Supreme Court declined Thursday to block a different air-pollution rule that seeks to cut toxic emissions from the nation’s power plants. 

Chief Justice John G. Roberts Jr. rejected a request to stay the Mercury and Air Toxic Standards rule, adopted by the Environmental Protection Agency three years ago to tighten restrictions on a class of harmful pollutants that are byproducts of burning coal.

The Walkerites have been fighting these public health initiatives for years.

And in many partisan and ideological ways.