TPM Livewire

New Iowa Senate Poll Shows GOP With Sizable Lead

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.