Source for Popular Vote data: Government Accountability Board - State of Wisconsin. http://gab.wi.gov/sites/default/files/County%20Results_6.5.12%20Recall%20Election_PRE%20SEN21%20RECOUNT.pdf, Government Accountability Board - State of Wisconsin (http://gab.wi.gov/sites/default/files/County%20Results_6.5.12%20Recall%20Election_PRE%20SEN21%20RECOUNT.pdf) (accessed 29 Jun 2012)