By Megan O Matz, ProPublica This story was originally published by ProPublica, a nonprofit newsroom that investigates abuses of power. ProPublica is a Pulitzer Prize-winning investigative newsroom. Sign up for .
As traditionally nonpartisan school board campaigns become polarized battlegrounds, voters in next week’s Wisconsin races may set the tone for how contentious races across the country will become this year.
This article was originally published by ProPublica, a Pulitzer Prize-winning investigative newsroom. About a month ago, three conservative candidates for…