Editing Casting vote (section)

==Use within a legislative body==
In some [[legislatures]], a casting vote may be exercised however the presiding officer wishes. For example, the vice president of the United States may [[List of tie-breaking votes cast by the vice president of the United States|exercise their casting vote]] when the [[United States Senate|Senate]] is evenly divided according to their own personal beliefs; by virtue of the vice president's political leanings and affiliations, the vice president's political party is able to serve as the majority party in the Senate and elect one of their own to serve as [[Party leaders of the United States Senate|Majority Leader]].

In some other legislatures, by contrast, a casting vote can only be exercised according to strict rules or [[constitutional convention (political custom)|constitutional conventions]]. For example, the speaker of the British House of Commons (a position whose functions and conventions of operation inspire similar roles in several other nations using the [[Westminster system]]) is expected by convention to follow [[Speaker Denison's rule]] (i.e., to vote to allow further discussion, if this is possible, and otherwise to vote in favour of the ''status quo''). This in effect means "Yes/Yea/Aye" on the first and second [[Reading (legislature)|reading]] of a [[Bill (law)|bill]], "No/Nay" on the third, "Yes/Yea/Aye" on the government's [[Appropriation bill|budget]], and "No/Nay" on a [[motion of no confidence]].

In the [[United States]], the concept of a casting vote is not used in ''[[Robert's Rules of Order]]''.

As a rule, it is only British-inspired parliamentary authorities that employ the concept of a "casting vote". Authors differ on whether the chair may vote in other capacities (like by ballot).

The concept of a "casting vote" is found in the UK parliamentary authority Erskine May: "If the numbers in a division are equal, the Speaker must give the casting vote."<ref>{{Cite web |year=2019 |title=Casting vote of Speaker |url=https://erskinemay.parliament.uk/section/4829/casting-vote-of-speaker |access-date=2023-12-19 |website=Erskine May |at=Paragraph 20.89 |edition=25th}}</ref> 

Canadian parliamentary authorities reflect the tradition of the casting vote e.g., Bourinot's Rules of Order (1995) "Casting Vote - A single vote (usually the prerogative of the chair) that determines an issue when a vote on the motion has resulted in a tie." (page 14), and the Canadian House of Commons glossery describing the casting vote as "[t]he deciding vote accorded to the Speaker (or, in committee, to the chair) in the event of a tie. The speaker or chair may vote only in order to avoid a deadlock, and traditionally votes so as to maintain the status quo."<ref>{{Cite web |title=Glossary of Parliamentary Procedure - ProceduralInfo - House of Commons of Canada |url=https://www.ourcommons.ca/procedure/glossary/index-e.html |access-date=2023-12-19 |website=www.ourcommons.ca |at=casting vote}}</ref> In this latter example, the speaker or chair may only vote to break an equality of votes.

===''Robert's Rules of Order'' ===
Under some rules of [[parliamentary procedure]], notably ''[[Robert's Rules of Order]]'', the presiding officer does not have a "casting vote" in the way it is normally understood as a duty or option to vote to break a tie. 

Robert's Rule of Order Newly Revised (12th Edition, 2020) does not include the concept of a casting vote. In RONR the presiding officer may vote by ballot and vote to break a tie. Quite differently than a casting vote, however, the presiding officer can also vote to cause a tie, defeating the motion (RONR 4:56, 44:12). 

On small boards, however, those that are fewer than 12 persons, Robert's Rules empowers the chair to use their rights as members. If a member, not only may the chair debate all questions, but the chair can also vote on all questions: "If the Chairman is a member, he may, without leaving the chair, speak in informal discussions and in debate, and vote on all questions." (RONR 49:21, 7). 

Informal discussions and motions may even be initiated by the chair (see footnote 4, 49:21). The chair of either small or large boards may only vote once (44:12), but if the chair of a small board withholds that vote until the mind of the house is known, the chair may vote to break or to cause a tie.

===Exceptions===
Some legislatures have abandoned the concept of a casting vote. 

====Australia====

Some legislatures have a dual approach; for example, in the [[Parliament of Australia|Australian Parliament]]:
* The [[Speaker of the Australian House of Representatives|speaker of the House of Representatives]] may not vote in general debates but has a casting vote to decide a tie. Conventionally, the speaker would support further discussion, where possible; allow decisions to be taken only by a majority; and, if the tied vote is on an amendment, leave the bill in its existing form.<ref>{{Cite web |last=corporateName=Commonwealth Parliament; address=Parliament House |first=Canberra |title=The Speaker's vote |url=https://www.aph.gov.au/About%20Parliament/House%20of%20Representatives/Powers%20practice%20and%20procedure/Practice7/HTML/Chapter6/7chap06_2_5.html |access-date=2023-10-07 |website=www.aph.gov.au |language=en-AU}}</ref>

* The [[President of the Australian Senate|president of the Senate]] usually votes in general debates, which are commonly based on party lines, but the president does not have a casting vote: a tied vote in the Senate defeats a bill.

====Canada====

The same arrangements as in Australia exist with respect to the speakers of the Canadian [[Speaker of the House of Commons (Canada)|House]] and [[Speaker of the Senate of Canada|Senate]].

====Italy====
By convention, in both the [[Chamber of Deputies (Italy)|Chamber of Deputies]] and in the [[Senate of the Republic (Italy)|Senate]], the presiding officer never casts a vote. In the event of a tie, the item put up to a vote is automatically deemed to have been defeated.

====New Zealand====

The [[speaker of the New Zealand House of Representatives]] formerly held a casting vote, similar to that of the speaker of the British House of Commons. Today, the speaker simply votes as an ordinary member; since an outright majority is necessary for a bill to pass, a tied vote defeats a bill.

====Philippines====

In the [[Congress of the Philippines]], the openly-partisan presiding officers of the two chambers have different rules on a casting vote:
* In the [[Senate of the Philippines|Senate]], the [[President of the Senate of the Philippines|president of the Senate]] always votes, and always votes last; thus, if the motion is tied, it is lost.
* In the [[House of Representatives of the Philippines|House]], the [[Speaker of the House of Representatives of the Philippines|speaker]] (or any presiding officer) only votes if there is a tie, otherwise the presiding officer abstains.

====United Kingdom====
The [[speaker of the United Kingdom House of Commons]] has a casting vote, which is conventionally cast in accordance with [[Speaker Denison's rule]].

====United States====
===== House of Representatives =====
The [[speaker of the United States House of Representatives]] has the same right to vote as any other member of the [[United States House of Representatives|House]] if they are a member of the House of Representatives (which they always have been in practice but need not be per the constitution), but to maintain the appearance of impartiality, typically does not do so unless it would make a difference, which is a ''de facto'' casting vote.

=====Senate =====
Pursuant to Article I, Section 3, Clause 4 of the [[United States Constitution]], the [[Vice president of the United States|vice president]] has a casting vote in the [[United States Senate|Senate]], in the event of a tie.