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The Reform Act, 2014 — a private member's bill from Conservative MP Michael Chong — requires every recognized party caucus to vote, at the start of each Parliament, on whether to give itself four powers: expelling and readmitting members, electing its own chair, triggering a leadership review, and electing an interim leader. The rules are simple: 20 per cent of caucus in writing forces a review, a majority by secret ballot removes the leader. This explainer covers how the machinery works, why it exists, how rarely caucuses switch it on — and the one time it was used, when Conservative MPs voted 73–45 to remove Erin O'Toole in February 2022.
Canadian party leaders are unusually secure by the standards of Westminster democracies: they are chosen by party members at large, not by the MPs who sit with them, and for most of modern history the MPs had no formal mechanism to remove them. The Reform Act, 2014 — introduced by Conservative backbencher Michael Chong as Bill C-586 and passed with royal assent in June 2015 — was an attempt to shift some of that power back to caucus. It amends the Parliament of Canada Act to define four powers a party caucus may give itself: to expel and readmit caucus members, to elect its own caucus chair, to trigger a review of the party leader, and to elect an interim leader. The Act does not impose these rules; instead it requires that at its first meeting after a general election, each recognized party's caucus must hold a separate recorded vote on whether to adopt each of the four, with the outcome reported to the Speaker. Where the leadership-review rules are adopted, a written notice signed by at least 20 per cent of caucus members triggers a review, and a majority vote by secret ballot removes the leader. In practice, caucuses have rarely adopted the leadership powers, and the Act contains no penalty if a caucus skips the required votes altogether. The rules have been used to remove a leader exactly once: on February 2, 2022, the Conservative caucus — which had adopted the leadership-review power after the 2021 election — voted 73–45 by secret ballot to remove Erin O'Toole as leader.
In most Westminster democracies, the party leader serves at the pleasure of the parliamentary caucus. A British Conservative caucus revolt forced Margaret Thatcher's resignation in 1990, and Tory MPs have cycled through leaders since; Australian caucuses have removed sitting prime ministers more than once.
Canada is the outlier. Since the 1920s, Canadian parties have chosen their leaders through conventions and, later, votes of the broad party membership — not the caucus. That gives leaders a mandate MPs didn't grant and, historically, couldn't formally revoke. Between elections, a Canadian party leader answered to no one in particular: the membership had no recall mechanism, and caucus had no rulebook.
MPs unhappy with a leader could grumble anonymously, defect, or force the issue through public pressure — but there was no defined, legitimate process. Conservative MP **Michael Chong** thought that gap helped explain the striking weakness of Canadian backbenchers relative to their party leaders. His answer was a private member's bill, **C-586**, which — after significant amendment to win support — passed the House and Senate and received royal assent in **June 2015** as the **Reform Act, 2014**.
The Act doesn't force any caucus to do anything about its leader. What it does is subtler: it writes a menu of caucus powers into the Parliament of Canada Act — and forces every caucus to formally decide, in a recorded vote, whether to take them.
The Reform Act defines four sets of rules a party caucus may adopt, each a distinct power:
1. **Expulsion and readmission of caucus members** — taking the power to remove an MP from caucus (or let one back in) away from the leader alone and giving it to the caucus as a whole. 2. **Election of the caucus chair** — caucus chooses its own presiding officer, rather than having one designated by the leader. 3. **Leadership review** — the power to trigger a formal review of the party leader and remove them by vote. 4. **Election of an interim leader** — if the leadership becomes vacant, caucus elects a temporary replacement.
The Act's central mechanism is the **mandatory adoption vote**. At its **first meeting after a general election**, each recognized party's caucus must hold a **separate recorded vote on each of the four powers**, and the outcome must be reported to the **Speaker of the House of Commons**. Each decision applies for the duration of that Parliament — a caucus that declines a power after one election votes on it fresh after the next.
One more change matters: before the Reform Act, the Canada Elections Act required each candidate's nomination to be signed by the party **leader** — a quiet but potent disciplinary tool, since a leader could veto an MP's re-nomination. The Act changed this so that each party designates a person or persons to endorse candidates. Parties may still choose the leader for that role, but the statute no longer requires it.
Where a caucus has adopted the leadership-review rules, the process is spelled out in the statute:
- **The trigger.** A leadership review begins when the caucus chair receives a **written notice signed by at least 20 per cent of the caucus's members** calling for one. In a caucus of 120 MPs, that's 24 signatures. - **The vote.** The question of removing the leader is put to the full caucus by **secret ballot**. Removal requires a **majority of the caucus members voting**. - **The aftermath.** If the leader is removed and the caucus has adopted the interim-leader rules, caucus promptly elects an **interim leader** by secret ballot — someone to lead until the party membership chooses a permanent successor through its normal leadership process.
Expulsion of a caucus member works on the same architecture: a written notice from at least 20 per cent of caucus, then a majority secret-ballot vote.
Two design choices are worth noticing. The **20 per cent threshold** is meant to be high enough to prevent a handful of malcontents from destabilizing a leader, but low enough that a genuine revolt can't be bottled up. The **secret ballot** is the teeth: MPs can vote their actual judgment without fearing career consequences from a leader who survives. On a public vote, few MPs would dare; the entire mechanism depends on the secrecy.
Note what the Act does **not** do: it doesn't let voters, party members, or Parliament as a whole remove a party leader. It is strictly an internal caucus power — the MPs a leader sits with, and no one else. Who those MPs are is public record; you can [find your MP](/find-your-mp) and see whose caucus they sit in.
For its first six years, the Reform Act's leadership provisions sat unused. Caucuses held their post-election votes (or were accused of skipping them) and mostly declined to arm the leadership-review power. Then came the one live test.
After the September 2021 election, the **Conservative caucus adopted the leadership-review rules**. Following months of internal tension over the campaign result and the leader's policy repositioning, enough Conservative MPs signed written notices in late January 2022 to cross the 20 per cent threshold. On **February 2, 2022**, the caucus voted by secret ballot — and removed **Erin O'Toole** as leader, **73 votes to 45**. Caucus then chose **Candice Bergen** as interim leader, and the party membership later elected a permanent successor. The process ran exactly as the statute drew it: trigger, secret ballot, majority, interim leader.
It remains the only time the Act has removed a federal party leader. That rarity is partly the point — the mechanism's existence can matter without being used — but it also reflects how seldom caucuses adopt the power at all. The **Liberal caucus has consistently declined** to adopt the leadership-review provisions, and other caucuses have voted the powers down more often than not.
Which points to the Act's widely noted weakness: **there is no penalty for non-compliance**. The votes are supposed to be recorded and reported to the Speaker, but no consequence follows if a caucus holds them loosely or not at all — and caucuses have faced exactly that criticism, including from Chong himself. The Reform Act put a leadership-removal mechanism into Canadian law. Whether it exists in practice is decided again after every election, behind the closed doors of each caucus room.
Canadian MPs vote with their party upwards of 99% of the time — among the highest rates of party discipline in the democratic world. That isn't an accident of like-mindedness; it's machinery: whips, caucus management, and a ladder of rewards and punishments that runs from committee seats to expulsion. Here is how the system works, what a "free vote" really means, and the one law that tried to shift the balance.
Every MP earns the same base salary — the sessional indemnity — with extra pay stacked on top for extra jobs: Prime Minister, minister, Speaker, House leader, whip, committee chair. The salary adjusts automatically every April 1 by a formula indexed to private-sector wage settlements, the pension vests after six years of service, and the office budget that pays for staff and travel is operating money, not personal income. This explainer walks through each piece and where the official figures are published.
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<article>
<h1>There's a Law That Lets MPs Fire Their Own Party Leader. Most Caucuses Choose Not to Arm It.</h1>
<p><em>By Parliament Audit · July 11, 2026 · 6 min read</em></p>
<p><strong>Canadian party leaders are unusually secure by the standards of Westminster democracies: they are chosen by party members at large, not by the MPs who sit with them, and for most of modern history the MPs had no formal mechanism to remove them. The Reform Act, 2014 — introduced by Conservative backbencher Michael Chong as Bill C-586 and passed with royal assent in June 2015 — was an attempt to shift some of that power back to caucus. It amends the Parliament of Canada Act to define four powers a party caucus may give itself: to expel and readmit caucus members, to elect its own caucus chair, to trigger a review of the party leader, and to elect an interim leader. The Act does not impose these rules; instead it requires that at its first meeting after a general election, each recognized party's caucus must hold a separate recorded vote on whether to adopt each of the four, with the outcome reported to the Speaker. Where the leadership-review rules are adopted, a written notice signed by at least 20 per cent of caucus members triggers a review, and a majority vote by secret ballot removes the leader. In practice, caucuses have rarely adopted the leadership powers, and the Act contains no penalty if a caucus skips the required votes altogether. The rules have been used to remove a leader exactly once: on February 2, 2022, the Conservative caucus — which had adopted the leadership-review power after the 2021 election — voted 73–45 by secret ballot to remove Erin O'Toole as leader.</strong></p>
<h2>The problem: leaders MPs couldn't remove</h2>
<p>In most Westminster democracies, the party leader serves at the pleasure of the parliamentary caucus. A British Conservative caucus revolt forced Margaret Thatcher's resignation in 1990, and Tory MPs have cycled through leaders since; Australian caucuses have removed sitting prime ministers more than once.</p>
<p>Canada is the outlier. Since the 1920s, Canadian parties have chosen their leaders through conventions and, later, votes of the broad party membership — not the caucus. That gives leaders a mandate MPs didn't grant and, historically, couldn't formally revoke. Between elections, a Canadian party leader answered to no one in particular: the membership had no recall mechanism, and caucus had no rulebook.</p>
<p>MPs unhappy with a leader could grumble anonymously, defect, or force the issue through public pressure — but there was no defined, legitimate process. Conservative MP **Michael Chong** thought that gap helped explain the striking weakness of Canadian backbenchers relative to their party leaders. His answer was a private member's bill, **C-586**, which — after significant amendment to win support — passed the House and Senate and received royal assent in **June 2015** as the **Reform Act, 2014**.</p>
<p>The Act doesn't force any caucus to do anything about its leader. What it does is subtler: it writes a menu of caucus powers into the Parliament of Canada Act — and forces every caucus to formally decide, in a recorded vote, whether to take them.</p>
<h2>The four powers — and the vote every caucus must hold</h2>
<p>The Reform Act defines four sets of rules a party caucus may adopt, each a distinct power:</p>
<p>1. **Expulsion and readmission of caucus members** — taking the power to remove an MP from caucus (or let one back in) away from the leader alone and giving it to the caucus as a whole.
2. **Election of the caucus chair** — caucus chooses its own presiding officer, rather than having one designated by the leader.
3. **Leadership review** — the power to trigger a formal review of the party leader and remove them by vote.
4. **Election of an interim leader** — if the leadership becomes vacant, caucus elects a temporary replacement.</p>
<p>The Act's central mechanism is the **mandatory adoption vote**. At its **first meeting after a general election**, each recognized party's caucus must hold a **separate recorded vote on each of the four powers**, and the outcome must be reported to the **Speaker of the House of Commons**. Each decision applies for the duration of that Parliament — a caucus that declines a power after one election votes on it fresh after the next.</p>
<p>One more change matters: before the Reform Act, the Canada Elections Act required each candidate's nomination to be signed by the party **leader** — a quiet but potent disciplinary tool, since a leader could veto an MP's re-nomination. The Act changed this so that each party designates a person or persons to endorse candidates. Parties may still choose the leader for that role, but the statute no longer requires it.</p>
<h2>How a removal actually works: 20 per cent, then a secret ballot</h2>
<p>Where a caucus has adopted the leadership-review rules, the process is spelled out in the statute:</p>
<p>- **The trigger.** A leadership review begins when the caucus chair receives a **written notice signed by at least 20 per cent of the caucus's members** calling for one. In a caucus of 120 MPs, that's 24 signatures.
- **The vote.** The question of removing the leader is put to the full caucus by **secret ballot**. Removal requires a **majority of the caucus members voting**.
- **The aftermath.** If the leader is removed and the caucus has adopted the interim-leader rules, caucus promptly elects an **interim leader** by secret ballot — someone to lead until the party membership chooses a permanent successor through its normal leadership process.</p>
<p>Expulsion of a caucus member works on the same architecture: a written notice from at least 20 per cent of caucus, then a majority secret-ballot vote.</p>
<p>Two design choices are worth noticing. The **20 per cent threshold** is meant to be high enough to prevent a handful of malcontents from destabilizing a leader, but low enough that a genuine revolt can't be bottled up. The **secret ballot** is the teeth: MPs can vote their actual judgment without fearing career consequences from a leader who survives. On a public vote, few MPs would dare; the entire mechanism depends on the secrecy.</p>
<p>Note what the Act does **not** do: it doesn't let voters, party members, or Parliament as a whole remove a party leader. It is strictly an internal caucus power — the MPs a leader sits with, and no one else. Who those MPs are is public record; you can [find your MP](/find-your-mp) and see whose caucus they sit in.</p>
<h2>Used once: the O'Toole precedent — and the compliance gap</h2>
<p>For its first six years, the Reform Act's leadership provisions sat unused. Caucuses held their post-election votes (or were accused of skipping them) and mostly declined to arm the leadership-review power. Then came the one live test.</p>
<p>After the September 2021 election, the **Conservative caucus adopted the leadership-review rules**. Following months of internal tension over the campaign result and the leader's policy repositioning, enough Conservative MPs signed written notices in late January 2022 to cross the 20 per cent threshold. On **February 2, 2022**, the caucus voted by secret ballot — and removed **Erin O'Toole** as leader, **73 votes to 45**. Caucus then chose **Candice Bergen** as interim leader, and the party membership later elected a permanent successor. The process ran exactly as the statute drew it: trigger, secret ballot, majority, interim leader.</p>
<p>It remains the only time the Act has removed a federal party leader. That rarity is partly the point — the mechanism's existence can matter without being used — but it also reflects how seldom caucuses adopt the power at all. The **Liberal caucus has consistently declined** to adopt the leadership-review provisions, and other caucuses have voted the powers down more often than not.</p>
<p>Which points to the Act's widely noted weakness: **there is no penalty for non-compliance**. The votes are supposed to be recorded and reported to the Speaker, but no consequence follows if a caucus holds them loosely or not at all — and caucuses have faced exactly that criticism, including from Chong himself. The Reform Act put a leadership-removal mechanism into Canadian law. Whether it exists in practice is decided again after every election, behind the closed doors of each caucus room.</p>
<hr />
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Originally published by <a href="https://parliamentaudit.ca/news/reform-act-how-mps-can-fire-their-party-leader-explained">Parliament Audit</a>
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