Actually, Senator Sanders’ staff was working closely with Representative Jayapal in crafting her bill (as were many others). It is precisely that reason that both bills will be much closer to each other than the previous versions from prior sessions of Congress. If the Democrats take the Senate in 2021 then I suspect the new bills introduced then will be closer yet.
For the public, the debate over the global issue of single payer versus insurance based systems will be intense. People come out of the box favoring the idea of a single payer system and avoiding the headaches of premiums, co-pays, deductibles, insurance claim rejections, and medical bankruptcies. But they will be bombarded even more than they are now by the usual false arguments about taxes, government running our lives, millions supposedly becoming unemployed, people dying because they have to wait for care, death panels, baby killings, and all the rest. The difference between the Senate bill and the house bill is pretty irrelevant in all that as far as I can see.
This where I hope that the presidential primary campaign shines more light than darkness on the issue and hope that the Democratic Party candidate will be a strong single payer proponent. Bernie’s 2016 campaign clearly moved the needle forward in this regard - I hope that movement continues. Meanwhile the hearings we will have in the House will have the Republican Representatives and some of the more conservative Democrats on the committee(s) spreading the misinformation generated by nefarious entities of all kinds who will whine about the details in order to obfuscate the big picture and destroy the momentum. Here is where I hope that the expert witnesses and Congressional progressives like AOC will be clear and effective advocates who spread awareness.
There’s a lot of big “IFs” in all of that as seen by the number of times I have to use the word “hope” to describe anything good happening - but it is still the best chance we’ve have in decades.