(KDAL) - After months of campaigning on the national and local level, election day 2012 finally arrives on Tuesday. Besides voting for a President, northeastern Minnesota and northwestern Wisconsin will decide on representation in Congress as the Republican winners two years ago face Democratic challengers. Chip Cravaack in Minnesota's 8th District faces Rick Nolan and in the 7th District in Wisconsin, Sean Duffy takes on Pat Kreitlow. Incumbent Minnesota Senator Amy Klobuchar is up against Kurt Bills and in Wisconsin, former Governor Tommy Thompson is running against Tammy Baldwin in the Senate race. St. Louis County voters will choose Commissioners in the 2nd, 3rd and 5th districts and many Minnesota State House and Senate seats are being contested. There are also two Constitutional Amendments to vote on in Minnesota dealing with the definition of marriage and whether photo i-d's should be required to vote. Polls open at 7 a-m in both states and will remain open until 8 p-m.