Iowa's U.S. Senate race may end with a statistical dead heat as new polling figures have the two major political party candidates tied days before Election Day.

The latest Ipsos and Reuters poll revealed Republican incumbent Joni Ernst and Democratic candidate Bruce Braley with 45 percent, each.

"There's not a lot of elections where I say it's genuinely too close to call, but because of the lack of incumbency and because of the closeness of the polls, I genuinely find it too close to call," Ipsos pollster Julia Clark said.

The poll was asked to registered voters who have already voted and scheduled to vote on Nov. 4. The survey did not specify the percentages of those who have already voted but mixed numbers with the likely voters. Ipsos and Reuters did note the number of people that have already voted with 468 people, while another 661 are likely to eventually vote.

Meanwhile, 4 percent of respondents don't plan on voting for either candidate and will vote for a third-party candidate. Six percent of respondents were unsure or refused to answer their preferred candidate.

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Ernst also received a slightly better overall favorable rating than Braley. The Republican incumbent hit 50 percent of the favorable rating while Braley accounted for 48 percent. The unfavorable rating did not fare well for Braley as he received 52 percent, higher than Ernst's 50 percent unfavorable rating.

Among the Senate election voters, the most important issue was the economy. Thirty percent of respondents said the economy was more important than health care and morality, which received 19 percent and 10 percent, respectively. Immigration and unemployment, or lack of jobs, tied at fourth with 6 percent, each. With 94 percent, most Iowans surveyed said Congress has to address immigration in 2015, while 6 percent claimed the issue was unimportant.

The senate election comes as President Barack Obama's popularity remains low. The poll disclosed Obama with a disapproval rating of 58 percent and 41 percent approving of his handling as president.

The Ipsos and Reuters survey comprised of 1,129 likely voters over the age of 18 by an online interview.

Based on five polls on the Iowa senate race since Oct. 16, including the Ipsos and Reuters survey, Real Clear Politics averaged Ernst with a small lead with 46.2 percent to 45 percent for Braley.

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