James Joyner links to a John Fund OpinionJournal piece looking at whether or not John F. Kennedy technically received a minority of the popular vote; in 1960, Alabama’s voters decided between Nixon and a slate of 11 Democratic electors, 6 of whom were unpledged—and voted for Harry Byrd—and 5 of whom pledged votes for Kennedy.
In the same election, Mississippi also elected a slate of unpledged electors who voted for Byrd; however, unlike in Alabama, they beat a slate of electors pledged to Kennedy by 7886 votes, according to Presidential Elections: 1789–1996, published by Congressional Quarterly—which still attributes all of Alabama’s votes to Kennedy, despite CQ’s own reallocation of the votes between Byrd and Kennedy based on the behavior of the Alabama electors.