It polls favorably but the GOP won’t vote for it, likely because of ideological (Govt is bad!) and financial (insurance industry lobby) reasons.
Edit for clarity - This wasn't a rally, but a small event of 'suits' in the audience. Perhaps a debate?
I haven’t checked what Biden’s plan is currently, but I assume it will be something that strengthens Obamacare. But ... you never know, Harris would be VP...