Joe Biden and Pete Buttigieg are among the only 2020 Democrats getting face time with Iowa voters as other contenders serve as jurors in President Trump’s impeachment trial. For the four Senators running for president, a pivotal Friday vote is their choice between hearing from more witnesses and risking being off the campaign trail on caucus day. Ed O’Keefe is in Iowa to see how the remaining candidates are taking advantage of the final days before the caucus.
