Political polarization seems to be deepening, both in the U.S. and around the globe. Some believe that the rise of ideology is to blame for growing polarization. But can increased polarization really be attributed to ideology? What is exactly is ideology, and how is it different from dogma? Is ideology a kind of political or philosophical thinking? And how might our understanding of ideology affect how we practice politics? Josh and Ray ideate with Marius Ostrowski from the European University Institute, author of Ideology (Key Concepts).