The word “Democrat,” to me, evokes names like Truman, Kennedy, Sam Rayburn, Tip O’Neill and even Lyndon Johnson. These days, people like Sanders, Obama, Pelosi, Biden, A.O.C. and Omar seem to be the party’s standard bearers. The former would likely not recognize the latter as Democrats. It seems that the current batch has acquired different goals and traits from Democrats that I’ve admired.