A Fairer Way to Conduct
Single-Winner Elections
Most U.S elections are held under plurality voting rules in which the
candidate with the most votes wins. If three or more candidates run in
the race then the winner can have less than a majority of the vote. But
the question always arises: was that winning candidate really preferred
by most voters?
Instant Runoff Voting (IRV) is a sensible reform for elections where one
person wins. Examples include elections for governors, mayors, US Senators,
and President. Instant Runoff Voting is better than plurality elections
because:
IRV is also better than "two-round" runoff or primary elections,
which can result in a drop-off in voter turnout between the two rounds.
IRV just requires a single election, which means that
How IRV Works: Each voter has one vote, and ranks candidates in order
of choice (1, 2, 3, etc.). The counting of ballots simulates a series of
run-off elections. All first choices are counted, and if no candidate wins
a majority of first choices, then the last place candidate (candidate with
the least first choices) is eliminated. Ballots of voters who ranked the
eliminated candidate first then are redistributed to their next-choice
candidates, as indicated on each voter's ballot. Last place candidates
are successively eliminated and ballots are redistributed to their next
choices until one candidate has over 50% of votes or is the last candidate
remaining.
Voters have the option to rank as many or as few candidates as they wish--their
favorite candidate first, their next favorite second and so on. Voters
have every incentive to vote for their favorite candidate rather than the
"lesser of ~two evils" because their ballot can still count toward
a winner even if their first choice loses. There also is every reason for
a voter to rank as many candidates as they want, since a voter's lower
choice will never help defeat one of their higher choices.
IRV is used to elect the parliament in Australia and the Presidents of
the Republic of Ireland and the American Political Science Association.
A related method is used in Cambridge (MA) to elect its city council.
Hypothetical example: In 1997, Bill Redmond
was elected to represent the 3rd Congressional District with only 43% of
the vote. IRV could been used to elect a majority-winner. Here's how it
could have worked.
Candidate |
1st Choice | Ballots redistributed to 2nd Choice | Final Tally |
Bill Redmond | 43% | +3% | =46% |
Eric Serna | 40% | +14% | =54% |
Carol Miller | 17% | -17% | X |
Assume that, of the 17 percent of voters who ranked the Green Party's Carol
Miller first, most of them (e.g. 14% of all voters) would have preferred
Democrat Serna over Republican Redmond, and ranked Sema second on their
ballots. When Carol Miller is eliminated her first choice votes are redistributed
according to her supporters' preferences. Eric Serna ends up with 54 percent
of the overall vote, a clear majority, and is declared the winner. This
is in contrast to the present system where Miller's supporters would have
no say in the contest between Redmond and Serna, and Redmond would win.
The ballot of a Miller supporter whose second choice was Serna would look
like this:
Candidate | Ranking |
Bill Redmond | |
Eric Serna | 2 |
Carol Miller | 1 |
This explanation is adapted from a document prepared by The
Center for Voting and Democracy, PO Box 60037, Washington DC 20039, 301-270-4616, fairvote@compuserve.com