A poll conducted for the Star Tribune shows DFL Congressional candidate Rick Nolan outpacing Republican incumbent Chip Cravaack by seven percentage points in the Eighth Congressional District, the Star Tribune reported.

The district covers the vast northeastern section of the state and encompasses rural stretches, the Iron Range and Duluth. The area leans slightly Democratic, but has at times elected Republican representatives, including Cravaack who defeated DFL incumbent Jim Oberstar in 2010.

Now, if the Star Tribune poll is any indication, the district's representation could flip again.

In a blog post, MinnPost reporter David Brauer questioned the methodology and accuracy of the poll.

Cravaack's campaign disputed the poll results, saying they don't align with other polls, the Star Tribune reported.

"There is not a single person who would say these numbers are reflective of the state of the race," said Cravaack advisor Ben Golnik to the Star Tribune.

Nolan campaign manager Michael Misterek said the race has been "neck-and-neck" and will continue to be close heading into Election Day, according to the Star Tribune.