Critic, Emergency Preparedness and Response – present44th ParliamentApril 8, 2025 - Present
Critic, Environment, Conservation and Parks – present44th ParliamentApril 8, 2025 - Present
Critic, Energy –43rd ParliamentMarch 29, 2023 - February 27, 2025
Critic, Climate Action –43rd ParliamentMarch 29, 2023 - February 27, 2025
Critic, Energy and the Climate Crisis –43rd ParliamentJuly 13, 2022 - March 29, 2023
Critic, Intergovernmental Affairs –43rd ParliamentJuly 13, 2022 - March 29, 2023
Leader, New Democratic Party of Ontario –43rd ParliamentJune 28, 2022 - February 4, 2023
Leader, Official Opposition –43rd ParliamentJune 28, 2022 - February 4, 2023
Critic, Climate Crisis –42nd ParliamentAugust 30, 2019 - May 3, 2022
Critic, Energy –42nd ParliamentAugust 30, 2019 - May 3, 2022
Critic, Energy and Climate Change –42nd ParliamentAugust 23, 2018 - August 30, 2019
Chair, Standing Committee on Estimates –42nd ParliamentAugust 7, 2018 - May 3, 2022
Member, Standing Committee on Estimates –42nd ParliamentJuly 26, 2018 - August 7, 2018
Critic, Greater Toronto Area Issues –41st ParliamentMarch 29, 2018 - May 8, 2018
Critic, Environment and Climate Change –41st ParliamentMarch 23, 2015 - May 8, 2018
Chair, Standing Committee on Social Policy –41st ParliamentOctober 20, 2014 - May 8, 2018
Critic, Energy –41st ParliamentJune 25, 2014 - May 8, 2018
Critic, Education –41st ParliamentJune 25, 2014 - March 23, 2015
Chair, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 27, 2013 - May 2, 2014
Member, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 20, 2013 - February 27, 2013
Chair, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 29, 2012 - September 9, 2012
Member, Standing Committee on Government Agencies –40th ParliamentFebruary 23, 2012 - September 9, 2012
Member, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 23, 2012 - February 29, 2012
Critic, Energy –40th ParliamentOctober 25, 2011 - May 2, 2014
Critic, Education –40th ParliamentOctober 25, 2011 - May 2, 2014
Critic, Revenue –39th ParliamentFebruary 16, 2010 - September 7, 2011
Critic, Finance –39th ParliamentFebruary 16, 2010 - September 7, 2011
Member, Standing Committee on Finance and Economic Affairs –39th ParliamentFebruary 16, 2010 - September 7, 2011
Critic, Public Infrastructure Renewal –39th ParliamentApril 1, 2009 - February 16, 2010
Critic, Transportation –39th ParliamentApril 1, 2009 - February 16, 2010
Deputy Third Party House Leader –39th ParliamentApril 1, 2009 - September 7, 2011
Member, Standing Committee on the Legislative Assembly –39th ParliamentDecember 10, 2007 - February 16, 2010
Critic, Greater Toronto Area Issues –39th ParliamentNovember 9, 2007 - April 1, 2009
Critic, Citizenship and Immigration –39th ParliamentNovember 9, 2007 - April 1, 2009
Critic, Environment –39th ParliamentNovember 9, 2007 - September 7, 2011
Critic, Culture –39th ParliamentNovember 9, 2007 - September 7, 2011
Critic, Energy –39th ParliamentNovember 9, 2007 - September 7, 2011
Critic, Transportation –38th ParliamentSeptember 25, 2006 - September 10, 2007
Critic, Public Infrastructure Renewal –38th ParliamentSeptember 25, 2006 - September 10, 2007
Critic, Environment –38th ParliamentSeptember 25, 2006 - September 10, 2007
Critic, Citizenship and Immigration –38th ParliamentSeptember 25, 2006 - April 19, 2007
Member, Standing Committee on General Government –38th ParliamentMay 16, 2006 - September 10, 2007
Deputy Third Party Whip –38th ParliamentMay 11, 2006 - September 10, 2007