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New Iowa Senate Poll Shows GOP With Sizable Lead

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AP Photo / Charlie Neibergall

Braley has largely been viewed as the favorite in the race. The Cook Political Report still ranks the contest as Lean Democrat. The RealClearPolitics average gives Braley a 4.3 percentage-point advantage.

The Loras College poll, conducted from June 4 to 5, surveyed 600 likely voters. Its margin of error is 4 percentage points.