On the eve of election, MPR’s Dan Olson reports on how challenges to voters will work in the state. While most Minnesotan's will vote without a hitch, it's almost certain that hundreds will be challenged on their right to cast a ballot.

The close election, memories of Florida's voting irregularities, and partisan passions will cause challengers from both major parties to scrutinize what happens at the polling place. Minnesota law allows each major party to have one challenger at each polling place. But election officials say they've trained election judges to make sure the challengers behave themselves.