The origins of that quote are dubious. Author Dan Baum claims that Nixon lawyer John Ehrlichman made this confession to him back in 1994, but Dan waited until 2

The origins of that quote are dubious. Author Dan Baum claims that Nixon lawyer John Ehrlichman made this confession to him back in 1994, but Dan waited until 2016 to publish it-- long enough that most people in Nixon's inner circle (including Ehrlichman himself) have died and couldn't set the record straight. However, Pat Buchanan (long time adviser to Nixon) said in an interview that the quote is nonsense.