Democratic presidential candidate Sen. Bernie Sanders, I-Vt., addresses the crowd at a campaign rally at Grand View University in Des Monies, Iowa, Sunday, Jan. 31, 2016.
Democratic presidential candidate Sen. Bernie Sanders, I-Vt., addresses the crowd at a campaign rally at Grand View University in Des Monies, Iowa, Sunday, Jan. 31, 2016.
Image: J. David Ake/Associated Press

Democrats' closing pitches in Iowa: 'Hard choices' vs. 'Revolution'

The two returned to the core initial messages of their candidacies as they made their final pitches to voters in what's turned into a nail-biter of a race in the early-voting state.

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