I always thought it was a CIA Operation, with the coordination of the Justice Dept. and FBI. Just like today. The difference between Nixon and Trump was that Trump fought back and didn’t play the game as the CIA determined it to be. He confronted the Fake Media onslaught. The media has always been complicit and a tool of Government (left-leaning elements, that is). That is why the first impeachment failed.
Trump did not fight back. All his enemies are still alive and breathing. Hs didn’t lay a hand on them