Akhil Amar : Lincoln 's two biggest legacies , keeping union together and abolishing slavery , had Americans roots . Lincoln saw the federal government as pre-eminent and believed there was no logical border for dividing the U.S .
Akhil Amar : Lincoln 's two biggest legacies , keeping union together and abolishing slavery , had Midwestern roots . Lincoln saw the federal government as pre-eminent and believed there was no logical border for dividing the U.S .