The Approval Voting Party (AVP) is a single-issue American political party dedicated to implementing approval voting in the United States. In 2019, the party became recognized as a minor party in Colorado.
Approval voting is a single-winner voting system used for elections. Each voter may vote for (or ‘approve’ of) as many of the candidates as the voter wishes. The winner is the candidate receiving the most votes. Each voter may vote for any combination of candidates and may give each candidate at most one vote.
The system was described in 1976 by Guy Ottewell and also by Robert J. Weber, who coined the term “approval voting.” It was more fully published in 1978 by political scientist Steven Brams and mathematician Peter Fishburn.