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    Harkin: 'We want a wide open caucus' in Iowa

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Harkin: 'We want a wide open caucus' in Iowa

Former senator Tom Harkin says Hillary Clinton has always been a good progressive, adds he wants to see a wide open caucus in Iowa.

Harkin: 'We want a wide open caucus' in Iowa

Former senator Tom Harkin says Hillary Clinton has always been a good progressive, adds he wants to see a wide open caucus in Iowa.