Crossing the Floor

J

Joseph Howe

1 crossing

1869

Anti-ConfederateLiberal-Conservative

R

Richard John Cartwright

1 crossing

1869

Liberal-ConservativeLiberal

W

William Stevens Fielding

1 crossing

1917

LiberalLiberal-Unionist

F

Frank Broadstreet Carvell

1 crossing

1917

LiberalLiberal-Unionist

H

Hugh Guthrie

1 crossing

1917

LiberalUnionist

~

~15 other Liberal MPs

1 crossing

1917

LiberalUnionist

G

George William Andrews

1 crossing

1919

Liberal-UnionistIndependent

H

Henry Herbert Stevens

1 crossing

1935

ConservativeReconstruction Party

R

Ross Thatcher

1 crossing

1955

CCF (socialist party)Independent

H

Hazen Argue

1 crossing

1962

NDPLiberal

R

René Lévesque

1 crossing

1967

Quebec LiberalIndependent

P

Paul Hellyer

1 crossing

1971

LiberalIndependent

F

Frank Calder

1 crossing

1975

NDPSocial Credit

J

Jack Horner

1 crossing

1977

Progressive ConservativeLiberal

R

Robert Toupin

1 crossing

1986

Prog. ConservativeIndependent

L

Lucien Bouchard

1 crossing

1990

Prog. ConservativeBloc Québécois

D

David Kilgour

1 crossing

1990

Prog. ConservativeIndependent

R

Richard Holden

1 crossing

1992

Equality PartyParti Québécois

J

John Nunziata

1 crossing

1996

LiberalIndependent

8

8 Saskatchewan MLAs

1 crossing

1997

Liberal / PCSaskatchewan Party

A

Angela Vautour

1 crossing

1999

NDPProg. Conservative

D

Deborah Grey + 12 others

1 crossing

2001

Canadian AllianceIndependent

D

Dennis Fentie

1 crossing

2002

NDPYukon Party

S

Scott Brison

1 crossing

2003

Prog. ConservativeLiberal

C

Carolyn Parrish

1 crossing

2004

LiberalIndependent

B

Belinda Stronach

1 crossing

2005

ConservativeLiberal

D

David Emerson

1 crossing

2006

LiberalConservative

B

Blair Wilson

1 crossing

2008

IndependentGreen Party

B

Brent Rathgeber

1 crossing

2013

ConservativeIndependent

D

Dean Del Mastro

1 crossing

2013

ConservativeIndependent

M

Maria Mourani

1 crossing

2013

Bloc QuébécoisIndependent

S

Sana Hassainia

1 crossing

2014

NDPIndependent

D

Danielle Smith + 8 MLAs

1 crossing

2014

WildroseProg. Conservative

S

Sandra Jansen

1 crossing

2016

Prog. ConservativeNDP

M

Maxime Bernier

1 crossing

2018

ConservativePeople's Party

L

Leona Alleslev

1 crossing

2018

LiberalConservative

7

7 Bloc Québécois MPs

1 crossing

2018

Bloc QuébécoisIndependent

A

Amanda Simard

1 crossing

2020

Prog. ConservativeLiberal

J

Jenica Atwin

1 crossing

2021

Green PartyLiberal

B

Bruce Banman

1 crossing

2023

BC UnitedBC Conservative

B

Brendan Maguire

1 crossing

2024

LiberalProg. Conservative

7

7 BC United MLAs

1 crossing

2024

BC UnitedBC Conservative

L

Lela Evans

1 crossing

2024

NDPProg. Conservative

C

Chris d'Entremont

1 crossing

2025

ConservativeLiberal

M

Michael Ma

1 crossing

2025

ConservativeLiberal

M

Matt Jeneroux

1 crossing

2026

ConservativeLiberal

A

Andrew Rainsford Wetmore

1 crossing

1866

Anti-ConfederateConfederation Party

S

Stewart Campbell

1 crossing

1868

Anti-ConfederateLiberal-Conservative

1

14 Anti-Confederate MPs join various parties

1 crossing

1869

Anti-ConfederateVarious

A

Alfred Gilpin Jones

1 crossing

1872

IndependentLiberal

N

Newton LeGayet MacKay

1 crossing

1873

ConservativeLiberal

S

Samuel McDonnell

1 crossing

1874

ConservativeLiberal

C

Chauveau, Flynn, Fortin, Pâquet, Racicot

1 crossing

1879

Quebec LiberalConservative

J

John Wallace

1 crossing

1883

LiberalLiberal-Conservative

G

Guillaume Amyot

1 crossing

1887

ConservativeNationalist

D

Dalton McCarthy

1 crossing

1893

ConservativeIndependent

J

Joseph-Israël Tarte

1 crossing

1893

ConservativeLiberal

J

James Domville

1 crossing

1896

ConservativeLiberal

H

Henri Bourassa

1 crossing

1900

LiberalIndependent

J

John Costigan

1 crossing

1900

Liberal-ConservativeLiberal

D

David-Arthur Lafortune

1 crossing

1909

LiberalIndependent Liberal

L

Louis-Joseph Papineau

1 crossing

1911

LiberalConservative

~

~17 Liberal-Unionist MPs (Conscription Crisis)

1 crossing

1917

LiberalUnionist

H

Honoré Achim

1 crossing

1917

ConservativeLaurier-Liberal

A

Andrew Knox

1 crossing

1919

Liberal-UnionistProgressive

W

William James Hammell

1 crossing

1922

ProgressiveLiberal

A

Alan Webster Neill

1 crossing

1925

ProgressiveIndependent

W

William George Baker

1 crossing

1925

Saskatchewan LabourLiberal

~

~12 Progressive MPs join Liberals or UFA

1 crossing

1926

ProgressiveLiberal / United Farmers

C

Charles Agar

1 crossing

1929

ProgressiveLiberal

T

Thomas Alexander Crerar

1 crossing

1930

Progressive / United FarmersLiberal

E

Ernest Edward Perley

1 crossing

1935

LiberalConservative

J

James Samuel Taylor

1 crossing

1937

Co-operative Commonwealth FederationIndependent

É

Édouard Lacroix

1 crossing

1943

LiberalBloc populaire canadien

M

Maxime Raymond

1 crossing

1943

LiberalBloc populaire canadien

~

~5 Quebec Liberal MPs oppose conscription

1 crossing

1944

LiberalIndependent Liberal

C

Charles Edwin Greenlay

1 crossing

1950

Progressive ConservativeLiberal-Progressive

T

Tilly Rolston

1 crossing

1952

Progressive ConservativeSocial Credit

S

Sam Drover

1 crossing

1955

LiberalCCF

1

13 Social Credit MPs form Ralliement des créditistes

1 crossing

1963

Social CreditRalliement des créditistes

G

Gérard Ouellet and Gérard Girouard

1 crossing

1964

Social CreditProgressive Conservative

L

Léon Balcer

1 crossing

1965

Progressive ConservativeIndependent

R

Rémi Paul

1 crossing

1965

Progressive ConservativeIndependent

G

Gilles Grégoire

1 crossing

1966

Ralliement des créditistesIndependent

B

Bud Olson

1 crossing

1967

Social CreditLiberal

G

Gordon Minto Churchill

1 crossing

1968

Progressive ConservativeIndependent Progressive Conservative

L

Lucien Lamoureux

1 crossing

1968

LiberalIndependent

R

Robert N. Thompson

1 crossing

1968

Social CreditProgressive Conservative

P

Perry Ryan

1 crossing

1969

LiberalProgressive Conservative

R

Raymond Rock

1 crossing

1972

LiberalNew Democratic Party

R

Roch La Salle

1 crossing

1972

Progressive ConservativeIndependent

H

Hugh Curtis

1 crossing

1974

BC ConservativeSocial Credit

G

Garde Gardom, Pat McGeer, and Allan Williams

1 crossing

1975

BC LiberalSocial Credit

C

Colin Thatcher

1 crossing

1977

LiberalProgressive Conservative

G

Gilbert Rondeau

1 crossing

1977

Social CreditIndependent

J

Jacques Lavoie

1 crossing

1977

Progressive ConservativeLiberal

J

James Armstrong Richardson

1 crossing

1978

LiberalIndependent

R

René Matte

1 crossing

1978

Ralliement des créditistesIndependent

S

Stan Schumacher

1 crossing

1978

Progressive ConservativeIndependent

R

Ralph Wesley Stewart

1 crossing

1979

LiberalProgressive Conservative

R

Richard Janelle

1 crossing

1979

Social CreditProgressive Conservative

D

Dick Collver and Dennis Ham

1 crossing

1980

Progressive ConservativeUnionest Party

T

Thomas Rideout

1 crossing

1980

LiberalProgressive Conservative

P

Peter Ittinuar

1 crossing

1982

New Democratic PartyLiberal

W

William J. Yurko

1 crossing

1982

Progressive ConservativeIndependent

A

Al Passarell

1 crossing

1985

NDPSocial Credit

G

Graham Lea

1 crossing

1985

NDPBC Conservative

D

David Ramsay

1 crossing

1986

Ontario NDPOntario Liberal

G

Gilles Roch

1 crossing

1986

Manitoba LiberalProgressive Conservative

T

Tony Lupusella

1 crossing

1986

Ontario NDPOntario Liberal

D

Donald James Johnston

1 crossing

1988

LiberalIndependent Liberal

S

Suzanne Blais-Grenier

1 crossing

1988

Progressive ConservativeIndependent

R

Richard Grisé

1 crossing

1989

Progressive ConservativeIndependent

A

Alex Kindy

1 crossing

1990

Progressive ConservativeIndependent

B

Benoît Tremblay

1 crossing

1990

Progressive ConservativeBloc Québécois

F

François Gérin

1 crossing

1990

Progressive ConservativeBloc Québécois

G

Gilbert Chartrand

1 crossing

1990

Progressive ConservativeBloc Québécois

G

Gilles Duceppe

1 crossing

1990

IndependentBloc Québécois

G

Gilles Rocheleau

1 crossing

1990

LiberalBloc Québécois

J

Jean Lapierre

1 crossing

1990

LiberalBloc Québécois

J

John Patrick (Pat) Nowlan

1 crossing

1990

Progressive ConservativeIndependent Conservative

L

Louis Plamondon

1 crossing

1990

Progressive ConservativeBloc Québécois

N

Nic Leblanc

1 crossing

1990

Progressive ConservativeBloc Québécois

P

Pierrette Venne

1 crossing

1990

Progressive ConservativeBloc Québécois

D

Denis Pronovost

1 crossing

1993

Progressive ConservativeIndependent

D

Dennis Drainville

1 crossing

1993

Ontario NDPIndependent

G

Gilles Bernier

1 crossing

1993

Progressive ConservativeIndependent

G

Glen McPherson

1 crossing

1993

Saskatchewan NDPLiberal

G

Gordon Wilson and Judi Tyabji

1 crossing

1993

BC LiberalProgressive Democratic Alliance

J

Jag Bhaduria

1 crossing

1994

LiberalIndependent

N

Neufeld, Hanson, Fox, and Weisgerber

1 crossing

1995

Social CreditReform Party of BC

J

Janet (Jan) Brown

1 crossing

1996

Reform PartyIndependent

8

8 Saskatchewan MLAs form Saskatchewan Party

1 crossing

1997

Liberal / Progressive ConservativeSaskatchewan Party

A

Arlene Julé

1 crossing

1997

Saskatchewan LiberalSaskatchewan Party

B

Bernard St-Laurent

1 crossing

1997

Bloc QuébécoisIndependent

J

Jack Gooshen

1 crossing

1997

Progressive ConservativeIndependent

R

Richard Neufeld

1 crossing

1997

Reform Party of BCBC Liberal

A

Alex Cullen

1 crossing

1998

Ontario LiberalOntario NDP

B

Buckley Belanger

1 crossing

1998

Saskatchewan LiberalSaskatchewan NDP

A

Anna-Marie Castrilli

1 crossing

1999

Ontario LiberalProgressive Conservative

B

Bill Matthews

1 crossing

1999

Progressive ConservativeLiberal

G

Gordon Wilson

1 crossing

1999

Progressive Democratic AllianceBC NDP

R

Réjean Lefebvre

1 crossing

1999

Bloc QuébécoisIndependent

A

André Harvey

1 crossing

2000

Progressive ConservativeLiberal

D

David Price

1 crossing

2000

Progressive ConservativeLiberal

D

Diane St-Jacques

1 crossing

2000

Progressive ConservativeLiberal

J

Jack Ramsay

1 crossing

2000

Reform PartyIndependent

J

Jake E. Hoeppner

1 crossing

2000

Reform PartyIndependent

J

Jim Jones

1 crossing

2000

Progressive ConservativeCanadian Alliance

R

Rick Laliberte

1 crossing

2000

New Democratic PartyLiberal

~

~14 Alliance MPs form Democratic Representative Caucus

1 crossing

2001

Canadian AllianceDemocratic Representative Caucus / Independent

J

Jean-Guy Carignan

1 crossing

2001

LiberalIndependent

J

Jim Melenchuk and Ron Osika

1 crossing

2001

Saskatchewan LiberalSaskatchewan NDP

G

Ghislain Lebel

1 crossing

2002

Bloc QuébécoisIndependent

I

Inky Mark

1 crossing

2002

Democratic Representative CaucusProgressive Conservative

J

Jim Pankiw

1 crossing

2002

Democratic Representative CaucusIndependent

J

Joe Peschisolido

1 crossing

2002

Canadian AllianceLiberal

P

Pierre Brien

1 crossing

2003

Bloc QuébécoisIndependent

R

Robert Lanctôt

1 crossing

2003

Bloc QuébécoisLiberal

A

André Bachand

1 crossing

2004

Progressive ConservativeIndependent

A

Anne Cools

1 crossing

2004

LiberalConservative

C

Chuck Cadman

1 crossing

2004

ConservativeIndependent

G

Gary Masyk

1 crossing

2004

Progressive ConservativeAlberta Alliance

J

John Bryden

1 crossing

2004

LiberalConservative

J

John Herron

1 crossing

2004

Progressive ConservativeIndependent

K

Keith Martin

1 crossing

2004

Canadian AllianceLiberal

L

Larry Spencer

1 crossing

2004

Canadian AllianceIndependent

B

Bev Desjarlais

1 crossing

2005

New Democratic PartyIndependent

D

David Kilgour (2nd crossing)

1 crossing

2005

LiberalIndependent

P

Pat O'Brien

1 crossing

2005

LiberalIndependent

F

Frank Branch

1 crossing

2006

LiberalIndependent

M

Michael Malley

1 crossing

2006

Progressive ConservativeIndependent

B

Bill Casey

1 crossing

2007

ConservativeIndependent

G

Garth Turner

1 crossing

2007

ConservativeLiberal

J

Joan MacAlpine-Stiles and Wally Stiles

1 crossing

2007

Progressive ConservativeLiberal

J

Joe Comuzzi

1 crossing

2007

LiberalConservative

L

Louise Thibault

1 crossing

2007

Bloc QuébécoisIndependent

T

Tim Peterson

1 crossing

2007

Ontario LiberalProgressive Conservative

W

Wajid Khan

1 crossing

2007

LiberalConservative

A

André Riedl and Pierre-Michel Auger

1 crossing

2008

ADQQuebec Liberal

É

Éric Caire and Marc Picard

1 crossing

2009

ADQIndependent

B

Blair Lekstrom

1 crossing

2010

BC LiberalIndependent

G

Guy Boutilier

1 crossing

2010

Progressive ConservativeWildrose

H

Heather Forsyth

1 crossing

2010

Progressive ConservativeWildrose Alliance

R

Rob Anderson

1 crossing

2010

Progressive ConservativeWildrose Alliance

B

Beaudoin, Curzi, Lapointe, Aussant, Charette, Gauvreau

1 crossing

2011

Parti QuébécoisIndependent

B

Bridget Pastoor

1 crossing

2011

Alberta LiberalProgressive Conservative

K

Karen Casey

1 crossing

2011

Progressive ConservativeLiberal

B

Bruce Hyer

1 crossing

2012

New Democratic PartyGreen Party

F

François Rebello

1 crossing

2012

Parti QuébécoisCoalition Avenir Québec

J

John van Dongen

1 crossing

2012

BC LiberalBC Conservative

L

Lise St-Denis

1 crossing

2012

New Democratic PartyLiberal

T

Tom Osborne

1 crossing

2012

Progressive ConservativeLiberal

C

Christopher Mitchelmore and Dale Kirby

1 crossing

2013

NDPLiberal

C

Claude Patry

1 crossing

2013

New Democratic PartyBloc Québécois

H

Hal Perry

1 crossing

2013

Progressive ConservativeLiberal

K

Kelly Lamrock

1 crossing

2013

LiberalNew Democratic Party

A

André Bellavance

1 crossing

2014

Bloc QuébécoisIndependent

D

Danielle Smith + 8 Wildrose MLAs

1 crossing

2014

Wildrose PartyProgressive Conservative

I

Ian Donovan

1 crossing

2014

Wildrose AllianceProgressive Conservative

J

Jean-François Fortin

1 crossing

2014

Bloc QuébécoisStrength in Democracy

J

Jean-François Larose

1 crossing

2014

New Democratic PartyStrength in Democracy

K

Kerry Towle

1 crossing

2014

Wildrose AllianceProgressive Conservative

P

Paul Lane

1 crossing

2014

Progressive ConservativeLiberal

E

Eve Adams

1 crossing

2015

ConservativeLiberal

J

Jack MacLaren

1 crossing

2017

Progressive ConservativeIndependent

7

7 Bloc Québécois MPs (Québec debout crisis)

1 crossing

2018

Bloc QuébécoisIndependent / Québec debout

C

Catherine Fournier

1 crossing

2019

Parti QuébécoisIndependent

C

Claire Samson

1 crossing

2021

Coalition Avenir QuébecConservative Party of Quebec

L

Lela Evans (1st crossing)

1 crossing

2022

Progressive ConservativeNDP

B

Brendan Maguire (NB)

1 crossing

2024

IndependentLiberal

E

Elenore Sturko

1 crossing

2024

BC UnitedBC Conservative

F

Fred Tilley

1 crossing

2024

LiberalProgressive Conservative

I

Ian Paton

1 crossing

2024

BC UnitedBC Conservative

L

Lela Evans (2nd crossing)

1 crossing

2024

NDPProgressive Conservative

L

Lorne Doerkson

1 crossing

2024

BC UnitedBC Conservative

P

Peter Milobar

1 crossing

2024

BC UnitedBC Conservative

T

Teresa Wat

1 crossing

2024

BC UnitedBC Conservative

T

Trevor Halford

1 crossing

2024

BC UnitedBC Conservative

D

Dallas Brodie

1 crossing

2025

BC ConservativeIndependent

T

Tara Armstrong

1 crossing

2025

BC ConservativeIndependent

L

Lori Idlout

1 crossing

2026

New Democratic PartyLiberal

M

Maïté Blanchette Vézina

1 crossing

2026

Coalition Avenir QuébecConservative Party of Quebec