A few days ago, GOP senatorial nominee Dave McCormick released an ad that correctly noted that, if all goes as planned at the Democratic National Convention next month, she would be “the most liberal nominee in U.S. history.” The ad basically went through a clip montage of why that is — of why Harris easily outpaces people like George McGovern and Michael Dukakis as the leftiest lefty ever to be the Democratic standard bearer. And yes, she even outdoes her boss. Writing about the commercial at the time, I said that “any Republican who doesn’t run some variation on this ad — including Donald T…
