Barack Obama '51 percent watch': 50.91

Getting bigger by the day. In Wednesday's edition of this feature, toshiaki listed the margins of victory of presidential elections going back to Nixon: −0.51% 2000 GWB 0.17% 1960 JFK 0.70% 1968 Nixon 2.06% 1976 Carter 2.46% 2004 GWB 3.52% 2012 Obama 4.48% 1948 Truman 5.56% 1992 Clinton 7.27% 2008 Obama 7.72% 1988 GHWB 8.51% 1996 Clinton 9.74% 1980 Reagan 10.85% 1952 Ike 15.40% 1956 Ike 18.21%...