Source-checked case file
Michael Ma joins the Liberal Party of Canada (2025)
- Permanent identifier
- CTF-E-000091
- Publication status
- Verified
- Evidence level
- Corroborated
- Revision
- 3
Record identity
- Date
- December 11, 2025
- Date precision
- Exact day
- Jurisdiction
- Canada
- Legislature
- Parliament of Canada
- Chamber
- House of Commons
- Transition type
- Affiliation change
- Event scope
- Individual
- Legacy row ID
- 91
- Last source check
- August 1, 2026
Participants and affiliation change
CTF-EP-000091-01
Conservative Party of CanadaLiberal Party of Canada
Effective date: December 11, 2025
After the switch
What happened next?
Only claim-cited outcomes with a recorded AI or human source check appear here. Timing alone never proves that a job or appointment was exchanged for a floor crossing.
Michael Ma
CTF-EP-000091-01
Other documented outcome
DocumentedMichael Ma was elected in Markham—Unionville as the Conservative candidate on April 28, 2025, with 27,055 votes (50.7%), a margin of 1,922 votes (3.6 percentage points). This occurred before his affiliation change.
- Date
- April 28, 2025
- Evidence
- 2 linked sources
- Compensation
- Pay unknown
- Timing from crossing
- Timing unknown
- Causation
- Causation not assessed
- Evidence confidence
- Confidence not assessed
- Past results — Markham—Unionville — 45th general electionElections Canada · Markham—Unionville; 45th general election; Michael Ma row
- Résultats antérieurs — Markham—Unionville — 45e élection généraleÉlections Canada · Markham—Unionville; 45e élection générale; ligne Michael Ma
CTF-O-000091-ELECTED-2025
Claims and evidence
Historical fact · Supported · High confidence
Michael Ma changed House affiliation from Conservative to Liberal on December 11, 2025.
CTF-CL-000091-AFFILIATION
BC centre-right realignment continues — source lead — not checked
- Permanent identifier
- CTF-S-000130
- Reliability
- Not yet assessed
- Source language
- Language not identified
- Locator
- Unknown
Changements à la députation — 45e législature — source checked
- Permanent identifier
- CTF-S-HOC-45-CHANGES-FR
- Reliability
- Official primary source
- Source language
- French
- Locator
- record Ma, Michael — Conservateur à Libéral — 2025-12-11
Changes in Membership — 45th Parliament — source checked
- Permanent identifier
- CTF-S-HOC-45-CHANGES-EN
- Reliability
- Official primary source
- Source language
- English
- Locator
- record Ma, Michael — Conservative to Liberal — 2025-12-11
Roles — Michael Ma — Current and Past — source checked
- Permanent identifier
- CTF-S-MA-HOC-EN
- Reliability
- Official primary source
- Source language
- English
- Locator
- record Political Affiliation intervals
Roles — Michael Ma — Current and Past — source checked
- Permanent identifier
- CTF-S-MA-HOC-EN
- Reliability
- Official primary source
- Source language
- English
- Locator
- section Political Affiliation; Election Candidate
Rôles — Michael Ma — Actuels et passés — source checked
- Permanent identifier
- CTF-S-MA-HOC-FR
- Reliability
- Official primary source
- Source language
- French
- Locator
- record Intervalles d’affiliation politique
Rôles — Michael Ma — Actuels et passés — source checked
- Permanent identifier
- CTF-S-MA-HOC-FR
- Reliability
- Official primary source
- Source language
- French
- Locator
- section Affiliation politique; Candidat aux élections
Revision history
Revision 3 · Expanded
Added the current House ledger citation, constituency link, and complete affiliation intervals.
CTF-R-000091-0003
Revision 2 · Corrected
Removed a false British Columbia identity narrative and unsupported birth year; established the federal Conservative-to-Liberal change on December 11, 2025; added the prior official election result without causal inference.
CTF-R-000091-0002
Revision 1 · Created
Imported from the legacy archive as an unpublished research lead. Historical narrative, motive labels, and benefit scores were not treated as verified claims.
CTF-R-000091-0001