In Watergate, the cover-up was worse than the crime. The Constitution was violated, but was not under a direct assault... I’m being serious here. What did Nixon Do (not his campaign staffers) that was unConstitutional? He stuck up for his guys, is the only thing I can see. My best info on this was the Plumbers were looking for evidence of John Kerry being in a meeting that the VVAW were going to assassinate Congress critters that supported the war. Hopefully, I can get some answers on this STRAIGHT. I was out of town at this time.
Firing of Archibald Cox. Cox was a special proscutor who was assigned by the Justice department, but operated independently of the Justice department. When it was discovered that there were relevant tape recordings, Cox subpoened the tapes. Nixon fired Cox, rather than fight their release in court, claiming special priveledge (an abuse of power not granted to the POTUS, and an obstruction of justice)