Butterfly ballot

The controversial Palm Beach ballot paper

The butterfly ballot paper became much discussed in the 2000 presidential election.

It refers to a ballot paper that has names down both sides, with the punch holes in the centre - and has been likened to a maze.

In Palm Beach county, Florida, the butterfly ballot design was confusing to many Democrat voters, who mounted a legal challenge against the election result.

They said the design led to thousands of people mistakenly voting for the Reform Party candidate Pat Buchanan when they meant to vote for Democrat Al Gore, or spoiling the paper as they tried to correct their mistake.

Mr Gore's name was the second name on the left of the ballot paper, but voters had to punch the third hole to vote for him (see picture).

People wanting to vote for George Bush has fewer problems, as his name was top, and conveniently corresponded to the top hole.

The Palm Beach ballot paper was designed by Theresa LePore, who has defended her design, despite repeated calls for her resignation.

Ms LePore, who has reportedly dreamed of being an election supervisor since childhood, say the design makes it easier for elderly voters to use.