Wisconsin has also changed a lot. Milwaukee has some of the most conservative suburbs of any city in America and upstate has seen a significant rightward drift as well.
This. People act like every state has the same types of people and same types of attitudes that it had ten, twenty, fifty and (in some hilariously stupid cases) one hundred years ago, and that's just simply not true. There's a reason terms like "Prairie Radicals" existed long ago and are never heard now a days. How states voted in the past is just not relevant to today.