The public option was originally a part of the ACA. Improve the ACA by making the public option a part of the ACA. Medicare-for-all will soon follow. Take our eye off the ball and allow republicans to repeal Obamacare would be a disaster. Their next target will be to repeal Medicare. Single-Payer is the ultimate goal but not at the expense of having tens of millions without health insurance for perhaps decades because we failed to see the big picture.