I also realized that the Adelsons and Koch Brothers invested a lot of money to try and buy the election. And there were enough crooked partisan politicians in Ohio and Florida to try and make Lord Romney Emperor of the United States by making sure only the white, excuse me the right people voted (It didn’t work).
GOP voter suppression fueled black turnout
But as you said, it is ultimately a matter of demographics. The United States is changing, and the WASP who use to run the joint can no longer pull that Dog Whistle Racial BS and expect to win Federal elections. Lord Romney and his backers threw every mean, dirty, nasty, underhanded innuendo against the “O” Man and it did not work.