List the election years in which a member of the United States Electoral College did not vote for the presidential or vice-presidential candidate for whom they had pledged to vote. I've listed the number of faithless Electors in each particular election year and given the eventual election winner.
Not much. Maybe a fine. Some states make it illegal to be a faithless elector which carries a fine. Other states invalidate the vote, so it would be the same as abstaining.
In one case, (the election with the most faithless electors in this quiz) many people had to be faithless electors, as the person they were chosen to elect died between election day and when the electoral college met. The few that did vote for the dead man had their ballots invalidated. It wasn't treachery, but necessity. Though as the system was originally designed, faithless electors were necessary. If someone died before the electoral college met, or if a major scandal happened, they could vote in a similar manner to the people of their state without voting for the candidate that shouldn't have become President due to death or scandal.
This isn't a good quiz as you are just guessing years. I think the idea is interesting. This would be better as a blog post. That format would allow for expanding on who the faithless electors voted for each year.
(I.e. were they part of the reason for the victor's election, or were they making a last-ditch effort to prevent it?)