While we at the TSAP ultimately prefer a full-fledged single-payer system for all, this idea is a great steppingstone towards that goal. First, lower the age to 62, then 55, then 50, and before you know it, the age limit will be lowered to zero, covering everyone if they so choose to participate, while (at first) leaving the rest of Obamacare intact. Combine that with allowing prescription drugs to be imported from Canada as well as having the government negotiate lower drug prices over here via monopsony power, and the current private, for-profit sick-care racket will soon be history. Then Medicare and Medicaid can be combined, and we will truly have single-payer for all, similar to Canada and most other industrialized nations. And poll after poll shows that the majority of Americans support single-payer.
Ironically, Trump himself originally went on the record as having supported single-payer healthcare back in 2000. Perhaps We the People ought to keep reminding him of that fact, and hound him about it until he finally returns to that idea, before he wipes the egg off of his face from his recent defeat.
Anything less would be uncivilized. Believe me.