As we approach Election Day 2020, all eyes are on polls — but how accurate are they? A specialist in political behavior and public opinion, Adam Berinsky is the Mitsui Professor of Political Science at MIT and director of the MIT Political Experiments Research Lab. He is the author of “In Time of War: Understanding American Public Opinion from World War II to Iraq” (University of Chicago Press, 2009) and “Silent Voices: Public Opinion and Political Participation in America” (Princeton University Press, 2004). Here, he speaks on trusting political polls…