Obama has as much trouble with numbers as he has with maps.

Last March, on the anniversary of the Bloody Sunday march in Selma, Ala., he claimed his parents united as a direct result of the civil rights movement: “There was something stirring across the country because of what happened in Selma, Ala., because some folks are willing to march across a bridge. So they got together and Barack Obama Jr. was born.”

Obama was born in 1961. The Selma march took place in 1965. His spokesman, Bill Burton, later explained that Obama was “speaking metaphorically about the civil-rights movement as a whole.”