If you're curious about how Data Science is being used to analyze Political data, look no further than Tableau - an easy-to-use tool for converting analytics into fabulous visualizations.
Recently, Tableau held a Politics Viz Contest to showcase some of the work their users are generating. The contest winner, Robert Rouse, used data from a Pew Research Center report to visualize increasing political polarization in the U.S. over the past few decades (Click on the image to enlarge and see the details):
Or here is one that I personally found interesting - a visualization of how each state has voted in partisan terms since 1964:
Or this alternative visualization of state-by-state partisanship in every election since 1916:
Really, if the conjunction of Data Science and Politics is your jam, then it's worth checking out the entire Tableau gallery to see what people are doing in the field.