It should be remembered that the concept of affordable Healthcare for everyone isn't a new concept. It's history goes back as far as 1909 as an idea hatched by Teddy Roosevelt. It was re-introduced during the FDR years, first as a possible adjunct to Social Security, but shelved temporarily, and was in the midst of being introduced again, when World War 2 broke out in December of 1941. It was again introduced by Harry Truman as a continuation of the legacy of FDR. It was bandied about during the Eisenhower years and it was again introduced in 1962 by President Kennedy.
Here is an address made by JFK at a rally in Madison Square Garden on May 20, 1960. Promoted as Medical Care for the Aged, Kennedy hoped for a plan that would insure decent medical care to those over the age of 65 and those who couldn't afford it. The bill was introduced and shelved, but was re-introduced and finally passed during the Johnson Administration in 1964 as a legacy to President Kennedy.
Here is that complete address.