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Every affiliation event this project holds, verified and unverified alike. The unit is the event: a caucus that moved together is one row with several participants. Each row states how well dated it is, how well evidenced it is, and whether it meets the publication standard.
271 events, not people — 11 of 271 of the events matching these filters meet the publication standard
This list counts events, not people. A group event is one row here and several people in a person-based tally. Withdrawn records are excluded from this listing. Coverage report
286 of 467
Carried to another party
A seat given to one party at an election, sitting under another party’s banner without an election in between. This is the floor-crossing figure, and it is the only figure that may be published under that name.
68 of 467
Left a caucus for the crossbench
The member left a caucus and sat as an independent. No party gained the seat. This figure has its own headline and is never added to the one beside it — adding the two is the single error this whole classification exists to prevent.
4 of 467
Joined a party from the crossbench
Counted toward neither headline above. The outbound leg of the same episode is already in the crossbench figure, so counting the return as well would count one person twice. Whether the voters were asked in between is the interesting question, and it is answered separately below.
These two figures are never summed. A seat carried to another party and a member who left a caucus for the crossbench are different acts, and a total that merges them answers no question anybody asked.
Measured over the records these filters admit, not over the whole database. The record-wide figures are on the coverage report. This selects RECORDS holding at least one participation of the class asked for, and each matching record still lists all of its people — so a group record where nine members crossed and one left for the crossbench matches either filter, and shows all ten either way. To count acts rather than records, read the figures above, which count people.
Every leg below states where the seat went: to another party, or out of a caucus to the crossbench. The two are counted separately and never share a total. The tally beside each is for the events on this page only, not for the record as a whole.
Why these are counted apart, and what the project believes about it
On July 8, 2026, in the Senate of Canada, the recorded affiliation of Jim Quinn changes from the Canadian Senators Group to the Conservative Party of Canada. The event record cites one…
CTF-E-PLI-20260708-DCC6051AThe House of Commons records Marilyn Gladu's affiliation changing from Conservative to Liberal on April 8, 2026. The archive does not infer motive or benefit.
CTF-E-000093The House of Commons records Lori Idlout's affiliation changing from NDP to Liberal on March 11, 2026. The archive does not infer motive or benefit.
CTF-E-000122The House of Commons records Matt Jeneroux's affiliation changing from Conservative to Liberal on February 18, 2026. The archive does not infer motive or benefit.
CTF-E-000092The House of Commons records Michael Ma's affiliation changing from Conservative to Liberal on December 11, 2025. The archive does not infer motive or benefit.
CTF-E-000091The House of Commons records Chris d'Entremont's affiliation changing from Conservative to Liberal on November 4, 2025. The archive does not infer motive or benefit.
CTF-E-000090On September 24, 2025, in the Senate of Canada, the recorded affiliation of Sandra Pupatello changes from the Canadian Senators Group to the Government Representative's Office. The event…
CTF-E-PLI-20250924-DED55274On June 12, 2025, in the Senate of Canada, the recorded affiliation of Larry W. Smith changes from the Canadian Senators Group to the Conservative Party of Canada. The event record cites…
CTF-E-PLI-20250612-B30985E3In 2025, in British Columbia, the recorded affiliation of Tara Armstrong changes from the Conservative Party of British Columbia to Independent. No source is cited for this event record: it…
CTF-E-000139In 2025, in British Columbia, the recorded affiliation of Dallas Brodie changes from the Conservative Party of British Columbia to Independent. No source is cited for this event record: it…
CTF-E-000138On October 25, 2024, in the Senate of Canada, the recorded affiliation of Clément Gignac changes from the Progressive Senate Group to the Canadian Senators Group. The event record cites one…
CTF-E-PLI-20241025-E4EA5815Brendan Maguire changed from Liberal to Progressive Conservative and was sworn as Minister of Community Services on February 22, 2024. Same-day timing is observed; causation is not…
CTF-E-000087In 2024, in British Columbia, the recorded affiliation of Ian Paton changes from BC United to the Conservative Party of British Columbia. No source is cited for this event record: it is a…
CTF-E-000137In 2024, in British Columbia, the recorded affiliation of Peter Milobar changes from BC United to the Conservative Party of British Columbia. No source is cited for this event record: it is…
CTF-E-000136In 2024, in British Columbia, the recorded affiliation of Trevor Halford changes from BC United to the Conservative Party of British Columbia. No source is cited for this event record: it…
CTF-E-000135In 2024, in British Columbia, the recorded affiliation of Teresa Wat changes from BC United to the Conservative Party of British Columbia. No source is cited for this event record: it is a…
CTF-E-000134In 2024, in British Columbia, the recorded affiliation of Elenore Sturko changes from BC United to the Conservative Party of British Columbia. No source is cited for this event record: it…
CTF-E-000133In 2024, in British Columbia, the recorded affiliation of Lorne Doerkson changes from BC United to the Conservative Party of British Columbia. No source is cited for this event record: it…
CTF-E-000132In 2024, in Nova Scotia, the recorded affiliation of Fred Tilley changes from the Nova Scotia Liberal Party to the Progressive Conservative Association of Nova Scotia. No source is cited…
CTF-E-000128In 2024, in Newfoundland and Labrador, the recorded affiliation of Lela Evans changes from the New Democratic Party of Newfoundland and Labrador to the Progressive Conservative Party of…
CTF-E-000089Group event
One event in which several members moved together. It counts as ONE event with several participants, never as several separate crossings.
In 2024, in British Columbia, the record groups six changes of affiliation, each from BC United to the Conservative Party of British Columbia. Six people are named individually, and the…
CTF-E-000088In 2023, in British Columbia, the recorded affiliation of Bruce Banman changes from BC United to the Conservative Party of British Columbia. The event record cites two sources, none of them…
CTF-E-000086On August 4, 2022, in the Senate of Canada, the recorded affiliation of Larry W. Smith changes from the Conservative Party of Canada to the Canadian Senators Group. The event record cites…
CTF-E-PLI-20220804-21637436On February 4, 2022, in the Senate of Canada, the recorded affiliation of Dennis Glen Patterson changes from the Conservative Party of Canada to the Canadian Senators Group. The event…
CTF-E-PLI-20220204-7E313C59