Blame ultra-liberal policies for California's free fall

During the Democratic Party convention that took place over the weekend in California, candidates not hewing to today’s progressive manifesto were loudly booed. John Hickenlooper, former governor of Colorado, was jeered by the liberal audience when he dared to say that “socialism is not the answer.”

Similarly, former Maryland Representative John Delaney was heckled for saying that "Medicare for all" is “actually not good policy nor is it good politics.” That apostasy led “the Boss,” Rep. Alexandria Ocasio-Cortez (D-N.Y.), to chastise Delaney for this “awful untrue line” and to...