It's a holdover from ye olden days, when certain Americans were only counted as 2/3 of a person.NPR reports that SAG-AFTRA members "have until December 5th to vote 'yea' or 'nay' on a new contract." When Congressional members, union members and others vote, why is it always "yea" or "nay"? Why can't they be like normal people and say "yes" or "no"?