Many of these are claims we have already debunked. Presumably the president is aware of our fact checks - he even links to one - but chose to ignore the facts in service of a campaign-style op-ed. Medicare-For-All is a complex subject, and serious questions could be raised about the cost and how a transition from today's health-care system would be financed. Trump correctly notes that studies have estimated the program - under the version promoted by Sen. Bernie Sanders, I-Vt. - would add $36 trillion in costs to the federal government over 10 years.