Milwaukee, Wisconsin (CNN) – His campaign thought Wisconsin's 10 electoral votes were in the bag long ago, but President Obama's trip here Saturday is the latest indicator that both sides believe the Badger State has become a toss-up.

The president touches down in the state Saturday for the first time in more than 200 days, set to attend two fund-raisers that will net his campaign more than $600,000 as well as an evening rally at a large amphitheater on the banks of Lake Michigan.

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