2012 average blue state vs. average red state

[Bureaucat]

Has anyone calculated what the average percentage margins were in 2012, or previous years, between the Red States and the Blue States?  We're becoming so polarized sometimes it feels we have two or three countries in one.

[buritobr]

I had already done what you asked but only for 2004

https://uselectionatlas.org/FORUM/index.php?topic=191839.0

For the other years, I showed the results by region. It is possible to observe that polarization is increasing

The polarization was already high, like the one in the present day, in 1964, 1968 and 1972. Between 1976 and 1992, polarization was very low. Polarization increased a lot again in 1996 and 2000, and kept increasing in 2004, 2008 and remained stable in 2012.

[ElectionsGuy]

Average red state: 56.9% Romney, 41.5% Obama. Texas bellwether
Average blue state: 56.0% Obama, 42.2% Romney. Washington bellwether

Added up from total votes of red states and blue states.

Red state Romney vote: 25,084,090
Red state Obama vote: 18,283,465
Red state Others vote: 705,800

Blue state Obama vote: 47,616,195
Blue state Romney vote: 35,848,062
Blue state Others vote: 1,518,272