Are Democrats more likely or less likely to support a single-payer healthcare system in the future?

[alsame]

13. What I'm talking about is not unlike what we have now,

seniors on Medicare, others using private insurance. And just lowering the age, allowing a buy in to Medicare. No one would pay new Medicare premiums until they were enrolled.

It's what a few Dems (Schumer, for one) were proposing during the ACA debate. I'm sure if you Google it, you'd find plenty of the details they were discussing.

You can nitpick the specifics, but the point remains that the single payer structure already exists in the US. There is no reason for the existence of a for-profit health insurance industry.