In the fall of 2017, with more than three years to go before the next presidential election, Sen. Bernie Sanders (I-VT) introduced Medicare for All legislation in the Senate. The bill racked up a long list of high-profile co-sponsors, many of whom were already being talked about as 2020 contenders.
Since then, Sens. Elizabeth Warren (D-MA), Kamala Harris (D-CA), and Kirsten Gillibrand (D-NY) — all co-sponsors of Sanders bill — have jumped into the Democratic fray. So, to...