Tie-breaking votes haven't been used since the Carter administration: http://en.wikipedia.org/wiki/List_of_tie-breaking_votes_cast_by_Vice_Presidents_of_the_Uni

Tie-breaking votes haven't been used since the Carter administration: http://en.wikipedia.org/wiki/List_of_tie-breaking_votes_cast_by_Vice_Presidents_of_the_United_States http://en.wikipedia.org/wiki/List_of_tie-breaking_votes_cast...