Party whip
The member responsible for ensuring their caucus attends votes and votes with the party where the party has taken a position.
What it means
Each recognized party in the House of Commons appoints a whip. The job has two halves: logistics and discipline. On the logistics side the whip manages attendance, pairing, committee substitutions and who speaks when. On the discipline side the whip communicates the party's position on a vote and counts on members to hold it.
A whipped vote is one where the party has instructed its members how to vote. A free vote releases members to vote according to conscience or constituency. Parties treat the distinction differently and rarely announce it formally, which is part of why the pattern has to be inferred from the divisions themselves rather than read off a list.
Consequences for breaking a whipped vote are internal rather than legal. A member may lose a committee seat, a critic role or a place on a delegation; in serious cases they may be removed from caucus and sit as an independent. Nothing in the Standing Orders compels a member to vote a particular way — the pressure is entirely political.
Because Canadian party discipline is strong by international standards, the rate at which a member breaks with their caucus is a meaningful signal, and a low rate is the norm rather than something suspicious. What is worth looking at is which specific divisions a member broke on. One break on a bill touching their riding tells you more than a hundred routine alignments.
Reading a party-line vote
On a whipped division you typically see near-perfect blocks: one party almost entirely yea, another almost entirely nay, with the only variation coming from absences and pairs. The interesting rows are the exceptions.
Our bill pages show the by-party breakdown alongside each party's seat count, which makes the exceptions easy to spot — if a party holds a given number of seats and its yeas, nays and absences do not reconcile to that number, someone crossed.
How it shows up in our data
A member profile shows a caucus alignment percentage: the share of recorded divisions where the member voted the same way as the majority of their party's caucus on that division, counted only where at least two caucus ballots are on record and the caucus is not split evenly.
Alignment is computed from recorded divisions only, so it exists only where we have vote data — federal and Ontario at present. We do not publish which votes were formally whipped, because parties do not publish that.
Related on Integrity Index
Sources
- House of Commons Compendium — the parliamentary framework and party roles
- Standing Orders of the House of Commons — divisions
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