The latest Des Moines Register/Bloomberg Politics poll in the Iowa Senate race shows the race getting closer between Republican state Sen. Joni Ernst and Democratic Rep. Bruce Braley, in the race to succeed retiring Democratic Sen. Tom Harkin.

Ernst has 47 percent, to Braley with 46 percent. The survey of likely voters was conducted from Oct. 3 to 8, and has a margin of error of plus or minus 3.1 percentage points.

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