(CNN) "Medicare for All" is in the spotlight in the 2020 presidential campaign, but many Americans don't understand what it is.

A new Kaiser Family Foundation poll released Tuesday found that majorities of those polled have mistaken views about the government-run program backed by Vermont Sen. Bernie Sanders, an independent who is a leading candidate for the Democratic nomination.

Nearly seven in 10 Americans think they would continue to pay deductibles and co-pays under Medicare for All, Kaiser found, when in fact they would not. And some 54% wrongly believe that individuals and employers would continue to pay premiums.

Almost the same share think those who currently get health insurance through their jobs or buy it on their own would be able to keep their plans, when in fact the current proposals would essentially do away with private insurance altogether.

But there is one aspect of Medicare for All that the vast majority of those polled understand very well: Some 78% say that taxes would increase for most people under such a plan, which is in fact likely to happen.