The last time the self-described Arizona "maverick" tried to shake up the election, he melodramatically suspended his campaign to return to Washington to do virtually nothing to ease the financial crisis. This may, in hindsight, be remembered as the 48 hours in which McCain lost the White House, since the whole thing (down to the brinksmanship over participating in the first debate) struck many voters as a political stunt. McCain's prior desperation gambit -- the selection of a "you betcha" Alaska governor as his running mate -- also does not look like the stuff of lasting political genius. But McCain still has a few gambits that he might try, especially if the alternative were a stinging defeat. Some Republicans wonder if the 72-year-old McCain should make an "I will serve only one term" pledge, so that as president he would be free of all political pressure (yeah, sure) in his effort to reform Washington and confront the deadly earmark crisis.