Legislative and Political Processes: what were some of the distinguishing features of the Congresses and political landscapes in the 1965, 1981, 1993, and 2009-time periods?

Legislative and Political Processes

What were some of the distinguishing features of the Congresses and political landscapes in the 1965, 1981, 1993, and 2009-time periods? How did these features enable, impede, or influence health policy developments?