A Marquette University Law School poll taken in late February also found that a majority of registered voters in Wisconsin support photo ID for voting, and separately, a majority of registered voters in Wisconsin said they would support the ballot initiative.

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.