The GOP's attack on the integrity of voters, carried out by party leaders -- a sitting president included -- on the eve of an election, is unprecedented.

The day after John McCain charged the community-based organization Acorn (Association of Community Organizations for Reform Now) with planning "one of the greatest frauds in voter history in this country," Sarah Palin told a boisterous crowd in Bangor, Maine: "In this election, it's a choice between a candidate who won't disavow a group committing voter fraud, and a leader...