The issue focused on voting machines used by tens of thousands of Wisconsin voters who faced difficulties casting ballots during last November's presidential election. Although electronic machines failed to accurately tally votes cast by felons who registered through Wisconsin's troubled Motor Voter program, experts pointed out that machines often malfunction during elections when felons cast ballots by mistake. In 2008, machines malfunctioned during voting by felons who mistakenly marked their selections as choices for Barack Obama rather than Mitt Romney. And last November, machines malfunctioned during voting by felons