Six of the remaining Democratic candidates met in Des Moines, Iowa on Tuesday night for their final debate before the state holds its first-in-the-nation caucuses on February 3rd. With the state of the race still fluid, the top contenders were all looking for a moment that might help them to distinguish themselves from the field. In the runup to the debate, much of the media focus was on the apparent breakdown of the de facto non-aggression pact between Bernie Sanders and Elizabeth Warren, with the latter claiming that Sanders had told her in a 2018 meeting that a woman couldn’t win a US presidential election. The two clashed over Warren’s claim during the debate; Sanders repeated his denial that such an exchange took place, while Warren declined to retract the accusation. Meanwhile, the moderators once again allowed Joe Biden to avoid serious or detailed scrutiny of his record in the Senate—in particular his vociferous early support for the Iraq War.