Yochai Benkler and Rob Faris present their recent research that assesses how asymmetrically polarized media in the United States shape political discourse and explains how the structure of media ecosystems sustains two starkly different versions of reality in American politics. This talk draws upon research into the propagation of disinformation about mail-in voter fraud and an analysis of political discourse in the first five months of 2020 from the Democratic primaries and impeachment to the emergence of the pandemic. It is moderated by Jasmine McNealy.