When John Dean, a central Watergate figure, offers commentary on CNN about recent events, it can be chilling. Then there was President Donald Trump’s longtime adviser Roger Stone coming out of a federal courthouse in Florida on Friday — having posted bond after his arrest on charges including obstruction and witness tampering — raising both hands and making the V-for-Victory sign in an unmistakable homage to the 37th president. Nixon’s face is tattooed on Stone’s back, an image I really don’t want to linger on. There was also Stone’s post-indictment media blitz, his expanded version of Nixon’s “I am not a crook.