A lot of bloggers have been pointing out that the similarities between Barack Obama and Matthew Santos, and how the story looks so familiar (brokered convention, Republican candidate mistrusted by his own base, up against a party insider in the primaries etc). A number of reports even comment on how the "Obama candidate" won.
Just a piece of advice to whoever Obama might chose as his potential running mate - make sure you're in good health. Sadly, John Spencer, who played Leo McGarry who Matt Santos chose as his running mater, died while filming the final season of the West Wing - just before he would have been due to start filming the climax of the election campaign. West Wing executive producer Lawrence O'Donnell has suggested the original plan was for the Republican to win it, but the death of John Spencer forced a rewrite.
Though am I being too nasty in suggesting that maybe that could be the best reason for picking Hillary?