The visualizations below provide some insight into Scott Brown's victory over Martha Coakley. I was curious to see where the biggest gaps were between Obama's solid victory in Massachusetts and Martha Coakley's big loss.
This map provides a quick overview of Obama's margin of victory in each city and town in Massachusetts. The darker blue circles indicate where Obama won and the red circles indicate where McCain won. The size of the circle represents of the number of total votes in an area.
This map can be explored more closely by highlighting one of the color gradations. This will isolate the cities within that range. If you hover your pointer over any of the circles you will get details on particular communities. You can look at a specific community by searching for it or selecting it in the drop-down box marked city and town.
From a post last week I presented the margin of victory by Scott Brown. He made huge strides in the 495 area and central Massachusetts.
This map shows the gap between the votes Martha Coakley received in each town in 2010 versus Barak Obama's vote totals in 2008. It is interesting to me that her strongest margins of victory correspond to where she also lost the most votes relative to 2008 democratic voting. Her advantage was based in the cities and the majority of these population centers did not turn out to vote in the same levels they did in 2008.
Here is a map showing the differnce in total votes cast in each town between 2008 and 2010
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