You were also lucky with the rounding, it's actually about 6.3 more R than the nation in 2012 and about 0.2 more R than the nation in 2008.
But yeah, I've no idea where Invisible Obama gets the "+4 in 2012" idea from.
I think some people are confused about the actual percentage. Romney got 47% nationwide and 51% in this particular district, which is about R+4 in 2012 alone. It's a 51-48 Romney district. Check the numbers before being condescending, okay?
Obviously, I did check the numbers. Given that you wrote "even in 2008, then R+4 in 2012" the confused person would have been you. Although thanks for clearing the source of your confusion up, I see where you got the idea from now.
(And I haven't the slightest clue what it says on Cook's website. Maybe he has his own set of election results that are different from the Kos-compiled ones?)
