(CNN) - A day after a CNN/ORC Poll showed President Barack Obama and Mitt Romney in a statistical tie in Wisconsin, a spokeswoman for the incumbent Democrat's campaign said they felt good about their chances of winning there.
"We know this race is going to be decided in a handful of states. We feel good about our campaign in Wisconsin," Obama campaign traveling press secretary Jen Psaki said on CNN. "We've had a grass roots organization there since the president ran the last time. We have a great group of supporters there. We're going to be spending some time there I bet."
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On Thursday CNN changed Wisconsin – which carries 10 electoral votes – from a "lean Obama" rating to a "toss up" on the CNN Electoral Map. The move came after Mitt Romney, Obama's Republican challenger, named Rep. Paul Ryan of Wisconsin as his running mate. While Ryan's announcement did not dramatically alter the presidential poll numbers in Wisconsin, it did change the way both campaigns viewed the state of the race in the state.
The poll, which was conducted entirely Ryan joined the GOP ticket, indicated 49% of registered voters in Wisconsin say they back Obama, with 45% supporting Romney. The president's four point advantage over Romney is within the survey's sampling error.
Two other polls conducted last week, before the Ryan announcement, indicated the president holding a single digit advantage in a state he won by 14 points in the 2008 presidential election.
Psaki said voters in Wisconsin – and around the country - were still waiting to hear a plan with substance from Romney.
"We know also that the people in Wisconsin are concerned about the same issues that people across the country are," Psaki said. "I still can't name three things they're going to do. Why are they opposed to providing access to affordable health care to the American people? Why is their tax plan extending benefits to the highest income and letting it bear the burden on the middle class? These are questions people in Wisconsin have as well."
A Republican has not won a presidential election in Wisconsin since 1984.
CNN's Kevin Liptak and Paul Steinhauser contributed to this report.
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