SIOUX CITY, Iowa (AP) — National polls notwithstanding, Hillary Clinton is guarding against complacency as she travels along the snow-covered fields of Iowa.

“I need you,” she says repeatedly on the rope-line between handshakes and selfies.

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Wary of another mishap in Iowa, Clinton is preaching a message of urgency, challenging her supporters to dig in during the final month before the state’s lead-off presidential caucus. She casts her candidacy as a check against Republicans and avoids mentioning her main Democratic rival, Bernie Sanders, whose polling numbers remain at striking distance.

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Clinton’s presidential bid faltered in Iowa in 2008, when she finished third against then-Sens. Barack Obama and John Edwards. She defeated Obama in the New Hampshire primary but the future president prevailed after outlasting Clinton in a series of contests during the spring.

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