Braley Gains Ground with Independents in Iowa Senate Race

Iowa's largest voting bloc supports the Democrat by a five-point margin, according to a new poll.

U.S. Rep. Bruce Braley (D-IA) debates Republican state Sen. Joni Ernst at the Galvin Fine Arts Center on October 11, 2014 on the campus of St. Ambrose University in Davenport, Iowa. The two are engaged in a closely contested race to filll the seat of U.S. Senator Tom Harkin (D-IA) and is considered to be one of the key races to determine control of the U.S. Senate.

Photo by David Greedy/Getty Images

Democrat Bruce Braley is gaining ground with Iowa's independent voters in his race against Republican Joni Ernst for Senate, a poll released Wednesday by Quinnipiac University shows. 

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