Impeachment loomed large over the fourth Democratic presidential debate, but none of the candidates lingered on the topic. Instead Elizabeth Warren took fire as she continues rising in the polls. This episode: political correspondent Asma Khalid, political correspondent Scott Detrow, political reporter Danielle Kurtzleben, and senior editor and correspondent Domenico Montanaro. Email the show at nprpolitics@npr.org. Find and support your local public radio station at npr.org/stations.