Nixon didn’t do anything a lot of other presidents did. (Have you heard about some of the things LBJ did?) But Nixon was a Republican, so he had to be punished despite All the Good he did for the Nation. He was a Great President.
It is too bad that Felt had to end his career by betraying his President and his Nation. I understand up till then he had an admirable career, but that betrayal destroyed all his previous good deeds.
Everything I've heard about him with regard to domestic policy suggests he was a liberal.
The DemocRATS never forgave Nixon for bagging Alger Hiss.
The left was after Nixon because he had the audacity to actually go after Alger Hiss.