It's back.

Vermont Senator Bernie Sanders is not giving up on his desire to extend Medicare to all Americans. He is set to unveil legislation on Wednesday that would likely jettison private health insurance and create a government-run program.

Sanders has long pushed for the United States to adopt a single-payer system, similar to those found in Canada and Europe. The most recent iteration came in amid his unexpectedly strong bid for the Democratic presidential nomination last year. But that proposal came with an eye-popping price tag and a slew of new taxes. CNN Money