Sen. Bernie Sanders (I-Vt.) took the lead Saturday in a new poll of Iowa caucus voters, conducted by The New York Times and Siena College. Sanders picked up 25 percent of the survey's support, followed by former South Bend, Indiana, Mayor Pete Buttigieg, former Vice President Joe Biden, and Sen. Elizabeth Warren (D-Mass.), all of whom were huddled together at 18, 17, and 15 percent, respectively. Sanders hasn't been in Iowa for a few days so he could attend President Trump's Senate impeachment trial, but the absence doesn't appear to have hurt his chances. Iowans will choose their nominee in a little over a week when voters gather for the Democratic caucus.

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