Spoiled ballot: Difference between revisions

(Adapting the text copied from English Wikipedia to electowiki)
(Linking to instant-runoff voting)
 
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In some jurisdictions, the number of spoiled ballots are counted and reported.
 
==Instant-runoff voing==
In ranked-choice/[[instant-runoff voting]] (IRV), the concept of "spoiled ballot" gets a bit complicated:
===Overvote===
[[File:Overvoting RCV IRV.png|thumb|The above is an example of an "overvote" in a ranked-choice/instant-runoff voting election]]
 
An overvote in an IRV election occurs when a voter marks two candidates in a single column/rank. For example, if a voter marked both Janie Smith and Aaron Jones as his first choice, his ballot would not count in the election. Likewise, if a voter correctly ranked his first choice but marked two candidates in the following column, only the first choice would be tabulated.
===Undervote===
[[File:Undervoting RCV IRV Ballot Exhausted Ballot.png|thumb|The above is an example of an "undervote" in a ranked-choice/instant-runoff voting election]]
An undervote in an IRV election occurs occurs when a voter skips two or more columns or rankings. For example, if a voter picked Janie Smith as his first choice, skipped his second and third choice and selected another candidate as his fourth choice, his ballot would not count in the election after the first round.
 
==References==
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