I disagree. The left has succeeded in almost everything it has tried to do since the sixties aside from avoiding war and losing their agenda against the rise of our military-industrial complex. The Civil Rights Act of 1964, The Great Society, The War On Poverty, entitlements through the roof, deficit spending, guaranteed health care for the poor, guaranteed health care for the elderly, bailouts for corporations and unions at the public teat in a nod to command economy, you name it. Yes, they haven't achieved single-payer health insurance yet. Big deal. We must look like raging Marxists to our betters from 1918. And then the social program undertaken since the fifties. Contraception on demand as a natural right. Abortion as a natural right. Gay marriage as a natural right. Have I mentioned that natural rights stem from a Judeo-Christian understanding of God? I mean, what the heck do you want? What more could you possibly be granted on the left? If anything, the left has been ascendant. It's eviscerated every right-leaning thing in its path in America aside, again, from military adventurism. But even that adventurism is couched in language that would make Woodrow Wilson blush in its international and humane concern.
I submit that Sanders is smart, knows this, and will smile all the way to his grave having accomplished all of this.