The escalating charges of voter fraud from the likes of Sarah Palin and Tucker Bounds in recent days are well documented and easily refuted here and elsewhere.  They are particularly egregious as Republicans continue to seek to suppress the vote in many states.  And they are unlikely to win many voters to the McCain ticket. 
But we should take them very seriously none the less.  A key question in this election now is what happens on November 5th?  It would be dangerously naive to think that the hatreds and rage stimulated and sanctioned by the McCain campaign will stop on that date.  Consider what might happen: enormous voter turnout swamps election sites; McCain poll watchers do whatever they can to dispute ballots and slow down voting further; anomalies in absentee and early voter ballots turn up missing votes and contested mailing dates.  Obama wins with a clear majority of popular and electoral votes.  McCain declares that because of "voter fraud" he will not accept the results of the election. 
What will the Bush-Gonzo attorneys do?  What would the Supreme Court do?  What do we do then?