Chamber Poll: Senate Race Tied, Pence Has Advantage in Gov. Race


Richard Mourdock (R) and Joe Donnelly (D) are in a statistical dead heat for the open U.S. Senate seat, with 17% of voters in that race still undecided, according to a new statewide poll released today by the Indiana Chamber of Commerce.

By a 41% to 39% margin (within the survey’s margin of error), Mourdock enjoys a slight lead over Donnelly.  In addition to the 17% of respondents who are undecided, 3% support Libertarian candidate Andrew Horning.

In the election for Indiana Governor, Mike Pence (R) holds a commanding 50% to 32% lead over John Gregg (D), with Libertarian Rupert Boneham supported by 3%.  In that race, 15% of respondents are still undecided.

The scientific public opinion poll of 600 registered voters statewide was conducted by Market Research Insight from August 6-9, 2012.  The poll has a margin of error of +/- 4% and utilized live interviewer telephone surveys to maximize accuracy. Dr. Verne Kennedy, senior analyst for Market Research Insight, served as project director for the poll. Kennedy has conducted more than 200 public opinion surveys in Indiana over the past two decades.

When poll respondents were asked to identify their political affiliations, results were 46% Republican and 38% Democrat, with 16% identifying as independents. Mourdock and Donnelly achieve similar support levels among their respective party voters, but 41% of self-identified independent voters are still undecided.

“As typical, both Democrats and Republicans are relatively polarized, favoring the candidate for their party,” Kennedy says. The 16% of Indiana voters who say they are completely independent will likely determine the outcome of the Senate race.

“Mourdock has the advantage in the election because more of the 17% of undecided voters on this race identify themselves as Republicans than Democrats,” Kennedy explains. “For instance, among those voters undecided on the U.S. Senate race, 33% indicated their support for Pence for governor compared to 6% who support Gregg in that race.”

The public opinion poll was commissioned by the Indiana Chamber of Commerce and its non-partisan political action program, Indiana Business for Responsive Government (IBRG). Learn more by viewing the polling report and crosstabs.

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