health insurance struggle? In particular, those that might address the role of the AMA during the years of the 1930s to the 1950s? Also, those that might address the words vs. deeds of folks like Senator Robert Wagner?

Your questions really need a very exhausting comprehensive research, sorry but I do not take such tasks upon myself. The debate about Health Insurance in the US is enormous and has not stopped till today, therefore I suggest you look for some books written on this issue, I am sure research was done.