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New polls are examining some key Senate races that may determine which party controls that body for the next two years.
A CNN survey which looked at Pennsylvania found 51% of likely voters support Democrat John Fetterman, 45 Republican Mehmet Oz.
In Wisconsin, Republican incumbent Ron Johnson has 50% support while Democrat Mandela Barnes received 49%.
Republican J.D. Vance and Democratic Congressman Tim Ryan are in a dead heat in the Ohio Senate race, according to a Sienna Poll.
Most polls have Republican Herschel Walker neck-and-neck with Democratic Senator Raphael Warnock in Georgia, and Blake Masters has narrowed his gap with Democratic Senator Mark Kelly in Arizona.