Just an observation:
If we didn't already have them, the Republicans today would block the
Clean Air Act
Clean Water Act
Safe Drinking Water Act
Endangered Species Act
Toxic Substances Control Act
Resource Conservation and Recovery Act
Superfund Act

As it is, they're trying to roll back every one of these protections, and the SCOTUS is helping.

@petergleick
Today's Republicans would also have opposed the
Civil Rights Act
Voting Rights Act
Pure Food, Drug, and Cosmetic Act
13th, 14th, 15th, 16th, 17th, 19th, 23rd, 24th, and 26th Amendments