Sam Rosenfeld, assistant professor of political science, stands in front of a black board teaching to a group of students in March, 2018.
Atlantic Senior Editor David Frum interviews in about the current state of political polarization in American politics. Rosenfeld鈥檚 newest book, , has generated national interest for how it examines the current political landscape through analysis of political party decisions from the 1950s through the 1970s.