Charges of ballot tampering fly last minute in Massachusetts vote

The Coakley campaign claims that a "serious violation" has taken place in the Massachusetts election, calling into question the validity of the election results even before the tally is in.

In a prepared statement, the campaign took issue with pre-marked ballots being given to voters, claiming that in five instances they were marked in favor of Republican candidate Scott Brown.

"We've received several independent and disturbing reports of voters across the state being handed ballots that are already marked in favor of Scott Brown," the Coakley campaign said. "This is obviously a serious violation, and our legal team is taking immediate steps to protect the integrity of this election.

"We do not yet know why this is happening, but you and everyone you know needs to be aware of the situation so that you can carefully inspect your ballot."

"The city clerk's office said a poll worker inadvertently handed out ballots that were already cast,"