MINNEAPOLIS (WCCO) — A new poll suggests there could be an upset brewing in Minnesota’s 8th Congressional District.

A KSTP/SurveyUSA poll found that Republican Stewart Mills is leading incumbent Rep. Rick Nolan 47 percent to 39 percent, with 11 percent undecided. The margin of error is 4.4 percent.

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Nolan was in the WCCO-TV studio to talk with Esme Murphy on Sunday morning. He said he doesn’t think poll is accurate, and that the race will be close.

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He also spoke about how many millions of dollars have come into the race, stating that outside ads attacking his opponent have hurt his campaign.

“All this outside money is not only polluting the air waves, it’s also polluting the public policy process,” he said. “The only ads that should be allowed are the ones that say ‘I’m Rick Nolan…and I approve this message.'”

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Nolan also discussed his stance of staying out of the Syrian conflict, and his thoughts on gun restrictions. The congressman said he supports the Second Amendment, but thinks that there should be some restrictions on gun ownership.