As we start analyzing the results of the 2012 presidential election in the US, it is becoming clear that political polarization continues to increase across the country. Take North Carolina for instance. As the thematic maps above show, the number of counties where the Republican party won by 40% or more reached a new high in 2012. This year there were 14 deeply red counties, compared to only 4 in 2008. On the other hand, there were 10 deeply red counties in 2004, which suggests that 2008 was an outlier due to the extraordinary circumstances that allowed Obama to win the state.