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Republican Senate candidate State Sen. Joni Ernst casts her ballot in the general election, Tuesday, November 4 in Red Oak, Iowa. Ernst is running against Democrat U.S. Rep. Bruce Braley for the U.S. Senate seat of Tom Harkin, who is not seeking reelection.
Republican Senate candidate State Sen. Joni Ernst casts her ballot in the general election, Tuesday, November 4 in Red Oak, Iowa. Ernst is running against Democrat U.S. Rep. Bruce Braley for the U.S. Senate seat of Tom Harkin, who is not seeking reelection.

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CNN's Pamela Brown reports.

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CNN's Pamela Brown reports.