The first primary contest of the 2020 presidential primary has arrived, with nearly 1,700 caucuses taking place across Iowa. Amy Walter of the Cook Political Report and David Yepsen of Iowa PBS join John Yang in Iowa to discuss early results, the latest poll numbers and how much the ongoing impeachment trial of President Trump has shifted attention away from the Democratic primary race.
NPR's Tamara Keith and Amy Walter of the Cook Political Report join Judy Woodruff to discuss the latest political news, including whether enough Senate Republicans will vote to hear witnesses in the impeachment trial of President Trump and how 2020 presidential candidates are polling and campaigning in Iowa as its Democratic caucuses approach.