6 takeaways from the Democratic debate in Iowa

Des Moines, Iowa (CNN)Caution ruled the night of the final Democratic presidential debate before the Iowa caucuses. Here are six takeaways from the debate: Warren’s pitch for a woman candidate Sanders and Biden spar over Iraq War vote Tuesday night brought the most substantive foreign policy debate of the Democratic race to date, with tensions flaring in the Middle East bringing the issue to the forefront. It started with Sanders attacking Biden’s 2002 vote to authorize the use of military force in Iraq. “Joe and I listened to what Dick…

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