[Publius]

When you vote for a presidential candidate, you're voting for electors pledged to that party's ticket, not for the candidate him(her)self. Democratic electors chosen by their state's electorate can change their votes should the DNC contact them and ask them to change that vote.

If somebody on the tickets dies or is replaced by the DNC for one reason or another, potential electors are told of the change. Because most state ballots are now locked in concrete, there would be special TV advertising telling voters that to vote for Clinton/Edwards, you have to vote for Kerry/Edwards.

[atomicpossum]

When you vote for a presidential candidate, you're voting for electors pledged to that party's ticket, not for the candidate him(her)self.

Then how, in 2000, Democrats were said to be enticing Bush electors to cross over and vote for Gore?