But voters mark only one choice on their ballots; the top vote-getters all take seats.

Each voter could mark which candidates were the voter's first, second, and third choice.

Each voter had one vote, but could mark three choices for how that vote can be counted.

The voter marks the candidates 1, 2, 3, etc, in order of preference.

But even before voters mark their paper ballots, the infighting among candidates has left them fewer choices.

In optical-scan voting, voters mark a paper ballot that is then read by a computer.

No declaration of party preference is required until the voter marks a ballot.

In this voting system, each voter would mark a vote against his or her fourth preference.

He has won four one-man referendums, in which voters mark either yes or no, with at least 94 percent of the vote.

By 1888, voters were marking their first secret ballots.