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01:02 — By stepping down, Senator Tom Harkin opens a rare kind of Senate race in the Hawkeye State.
01:55 — Senator Tom Harkin says she cannot be both.
04:51 — Former Iowa Senator Tom Harkin, a supporter of Hillary Clinton, sits down with Chuck Todd in Des Moines to discuss Clinton's caucus strategy.
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You'll never guess who Geena Davis was into in college