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  Faith in the system: Divisions among evangelicals in Iowa

Need to Know correspondent Rick Karr examines how conservative evangelical voters in Iowa have been unable to coalesce around one candidate as the presidential caucuses loom ahead.


  Playing the field: Ethanol in Iowa

Need to Know correspondent Win Rosenfeld discovers how the presidential candidates are no longer committing to ethanol subsidies — a once-unthinkable position for a candidate seeking votes in Iowa.


American Voices: Michael Gartner on Iowa

On “American Voices,” essayist Michael Gartner offers a portrait of the political diversity and proud history of his home state.


  Polls and bears: Can markets predict elections better than pollsters?

Need to Know travels to Iowa to examine a unique futures market that may be better at predicting winning political candidates than traditional polling methods.

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