A reader writes:
On 20 occasions, the incumbent President has been re-elected. Median margin of victory in the electoral college is 66%. That would require Bush to get 447 electoral votes.
On 11 occasions, the incumbent President has lost his bid for re-election. Median margin of loss in the electoral college is 37%. That would require Kerry to get 366 electoral votes.
If you want to define an electoral “landslide” as being 10% or more difference, then of the 31 occasions described above 29 were landslides (Adams lost by 5 in 1800 and Wilson won by 5 in 1916). If you want to define it as 20% or more, then 27 were landslides (19 of the 20 wins and 8 of the 11 losses).
See my point?