Wisconsin and Minnesota have long made fascinating bookends. As longtime readers may recall, the two neighboring states have similar sizes, similar populations, similar demographics, and even similar climates. But they don’t necessarily have similar politics, at least not lately. In the 2010 elections, the Badger State elected Scott Walker (R) governor and gave control of the legislature to Republicans, while the Gopher State made Mark Dayton (D) governor and, in 2012, elected a Democratic legislature*. The former got to work targeting collective bargaining and approving tax cuts, while the latter raised taxes on the wealthy and boosted in-state investments. Nearly...