Sanders Within Striking Distance of Clinton in Iowa

The latest Bloomberg Politics/Des Moines Register Iowa Poll shows concerns about Clinton, enthusiasm for Sanders, and the possibility of Biden roiling the Democratic field.

Senator Bernie Sanders, an independent from Vermont and 2016 Democratic presidential candidate, speaks to attendees at the Iowa State Fair Soapbox in Des Moines, Iowa, U.S., on Saturday, Aug. 15, 2015. The Iowa State Fair is expected to host 18 presidential candidates and runs until Aug. 23. Photographer: Andrew Harrer/Bloomberg *** Local Caption *** Bernie Sanders

Photographer: Andrew Harrer/Bloomberg

Hillary Clinton’s once-prohibitive advantage in Iowa has slipped enough to jeopardize her front-runner status and Bernie Sanders has moved to within striking distance, revealing a Democratic presidential field in unexpected flux as Vice President Joe Biden mulls whether to make a late entrance into the race.

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