A recent article on Salon shows that Multiple Studies assert that Medicare For All is much cheaper than the Public Option pushed by some Moderates-
https://www.salon.com/2020/multiple-studies-show-medicare-for-all-would-be-cheaper-than-public-option-pushed-by-moderates/
[Sorry, I am having trouble with the link. If you go to Salon and search "Medicare For All Cheaper", you will get the article.]
https://www.salon.com
The point of the article is that Multiple Studies have shown Medicare For All is cheaper than the Public Option (Medicare For All Who Want It), and not just cheaper, but much cheaper. So people harassing Bernie for costs should point out that the Public Option pushed by his opponents is much more expensive than Medicare For All.