In this December 12, 2007 posting, I predicted that Barack Obama would win the Election 2008 popular vote by 5 percent over “whoever is unfortunate enough to win the Republican nomination”.
http://www.cnn.com/ELECTION/2008/results/president/ shows that Barack Obama actually prevailed by 7 percent.
[Reference: In 2004, Bush won 50.7 percent to Kerry’s 48.3 (source). In 2000, Bush won 47.9 percent to Gore’s 48.4 percent (i.e., Bush would have lost if not for our electoral college system). In 1992, Clinton won 43 percent of the popular vote to King Bush I’s 37 percent. Clinton’s reelection in 1996 was 49/41.]