"Trouncing"? Jimmy Carter got about 51% of the popular vote. What nonsense!
He got less than that. In 1976, Carter won with 50.08% of the popular vote.
http://www.uselectionatlas.org/USPRESIDENT/national.php?year=1976
Of course, no Democrat has gotten that high a percentage of the popular vote since then (Clinton never managed to get 50%), so I suppose in their minds that is a "trouncing."