While Wisconsin's Supreme Court race is officially nonpartisan, Democrats and Republicans have both picked sides and are pouring fortunes into their efforts. As the votes are tallied Tuesday night, the ability to claim political momentum amid the upheaval of President Donald Trump’s second term will be on the line. What is being tested, though, is not so much whether large numbers of voters have changed their minds in the five months since the presidential election. When it comes to Trump himself, Wisconsin is an especially polarized state, with three straight presidential elections decided by less than 1 point. More likely,...