Poll: Biden, Warren tied for Iowa; Sanders in third place

MGN Photo: Gage Skidmore / CC BY-SA 2.0
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CEDAR RAPIDS, Iowa (KCRG) - A new CBS poll shows Sen. Elizabeth Warren and former Vice President Joe Biden tied for the lead in Iowa.

The CBS News Battleground Tracker of more than 700 registered Democratic voters shows both Joe Biden and Elizabeth Warren received 22% support as the first-choice Democratic presidential nominee in the state.

Vermont Senator Bernie Sanders placed third at 21%. South Bend, Ohio, Mayor, Pete Buttigieg landed in fourth place at 14%.