The expansion of early voting is posing a dilemma for the campaign teams, with decisions having to be made about whether to time ads and rallies to coincide with them or whether to delay drives until nearer November 4. The early opening of the ballots in Virginia, a battlefield state which Obama hopes to take from the Republicans, partly explains why McCain and his running mate, Sarah Palin, held a rally in the state on Wednesday and why a "Victory 2008" bus tour, packed with congressmen and McCain's brother, Joe, set off yesterday on a voter registration drive. Early balloting ...