This article was written the day after the election without the final tallies and only shows that fewer whites vote in 2012. Is it your assertion that because the issing voters are white they had to be conservative? If so how did Romney (60, 933,500), receive almost a million more final votes than McCain (59,948,323), did?
It couldn’t possibly be that they were disenchanted Obama voters? 2008 (69,498,516) to 2012 (65,915,796).
http://en.wikipedia.org/wiki/United_States_presidential_election,_2008
http://en.wikipedia.org/wiki/United_States_presidential_election,_2012