The Presidential Race in Graphs (and Charts and Diagrams), Part III

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CHICAGO, IL - MAY 21:  U.S. President Barack Obama speaks at a press conference during the NATO Summit at McCormick Place on May 21, 2012 in Chicago, Illinois.  As sixty heads of state converge for the two day summit that will address the situation in Afghanistan among other global defense issues, thousands of demonstrators have taken the streets to protest.  (Photo by Kevork Djansezian/Getty Images)
Photo: Kevork Djansezian/2012 Getty Images

From now until November, we will periodically bring you an update on the presidential race in the form of graphs and charts and diagrams, because who doesn't like looking at that stuff? This is the third time we are doing that.

Enjoy.