American data-visualisation specialist Adam McCann has built an interactive predictor for the US election. His project combines an overview of the most recent state-by-state polling figures with historical outcomes, and also models the anticipated impact on the final result of changes to the unemployment rate, stock market value and Obama's approval rating. Choose 'Model Projection' from the 'Map Show' menu (upper left), and then use the sliders on the right to explore the predicted effects of shifts in the different economic and political factors. Click a state to browse its voting patterns since 1940 and see its latest polling data. The 'Model Projection' box on the right details Adam's methodology.Adam's visualisation was designed using Tableau Public and won the Political Viz contest