What, exactly, did Nixon do? He thought about about a few things, never followed through and was hounded out of office. I think the worst thing he did was to prosecute Alger Hiss, which pissed off the Democrats (Communists).
...What, exactly, did Nixon do? ...
I assume you are not joking and either weren’t around or forgot about Watergate.
He was not involved in the 3rd rate burglary of DNC as orchestrated by se ior staff members, but he controlled the massive and illegal cover up of it. His Secretary “accidentally” erased 18 minutes of incriminating evidence ( like Hillary deleted 30,000 emails, fired the Attorney Genreral who was investigating him and getting close, and committed other illegal acts and said, “ When the President does it, its not illegal.”
Nixon proposed and signed into law the establishment of the EPA. Just like GW Smirks proposed The Department of Homeland Propaganda and Insecurity.
The Clean Water Act, the Clean Air Act, the National Environmental Policy Act, the Endangered Species Act, and instituting the EPA.
Other than that, not much. /s