I believe it was the first President Bush who made famous the circumlocution "the big Mo" to refer to having an edge in momentum. Certainly in the last week or two we have seen the possession of the "momentum edge" pass from B. Hussein Obama to John McCain.
Pretty clearly the factor to which we look for an explanation of this transfer is the appointment of Alaska Governor Sarah Palin as vice presidential nominee. Talk about a game-changing appointment! My guess is that even McCain had no idea what a phenomenon she would turn out to be.
