Richard M Nixon, in 1974
Voters have a wider choice of candidates and ideas
Multiparty systems allow for variation in political discourse, and often tries to unite them all in policy decisions, or at least to make decisions with the majority in mind. Multiparty systems do have one leader, but he or she typically gets input from many other people.
A ward
it may not be given directly to political parties
Overseas Absentee Voting Act happened in 2003.