You can tell if you have the second edition if you have black boxes around the electoral values on the board as in this picture(http://www.boardgamegeek.com/image/287379/1960-the-making-of-the-president). More cubes have been added than are present in the first edition, and two cards (Tricky Dick and Henry Luce) have been clarified. In addition the rule book shows "2nd Edition" on front page in upper right corner. For more details, see http://www.boardgamegeek.com/thread/412773/1960-reprint-or-different-versions.