Obama, McCain primed for victories in Wisconsin Public Policy Polling February 18, 2008 Raleigh, N.C. â Barack Obama has expanded his lead over Hillary Clinton in Wisconsin to 13 points, according to Public Policy Pollingâs latest survey in the state. Obama leads 53-40, after holding a 50-39 advantage in a survey done earlier this week. He received support from well over 60% of those polled under the age of 45, and leads with both white and female voters in addition to his core constituencies of males and African Americans. âOur poll showed that with a standard turnout, Obama would lead Clinton just 47-44,â said Dean Debnam, President of Public Policy Polling. âBut we expect Wisconsin will see the same record levels of turnout from young voters and black voters that Obama has been bringing out in other states. That should propel him to a double digit victory.â