With every single serious 2020 contender, save for Sen. Amy Klobuchar, D-Minn., backing “Medicare for all,” it’s time to address a number of enormous elephants in the room.

Rep. Pramila Jayapal, D-Wash., recently refiled an updated version of the bill with the backing of more than 100 co-sponsors. Those endorsing the plan to effectively nationalize one-fifth of our economy must finally face tough questions. How Democrats plan to pay for single payer, conservatively estimated at $32.6 trillion in its first decade, may be the least of their concerns, especially in the long run.