Third Party Whip –41st ParliamentJuly 2, 2014 - May 8, 2018
Commissioner, Board of Internal Economy – present44th ParliamentApril 16, 2025 - Present
Critic, Rural Affairs – present44th ParliamentApril 8, 2025 - Present
Critic, Agriculture, Food, Agribusiness – present44th ParliamentApril 8, 2025 - Present
Opposition House Leader – present44th ParliamentApril 1, 2025 - Present
Critic, Legislative Affairs –43rd ParliamentMarch 29, 2023 - February 27, 2025
Opposition House Leader –43rd ParliamentFebruary 15, 2023 - February 27, 2025
Commissioner, Board of Internal Economy –43rd ParliamentAugust 10, 2022 - April 16, 2025
Critic, Solicitor General –43rd ParliamentJuly 13, 2022 - March 11, 2024
Critic, Agriculture, Food and Rural Affairs –43rd ParliamentJuly 13, 2022 - February 27, 2025
Chief Opposition Whip –43rd ParliamentJuly 13, 2022 - February 15, 2023
Chief Opposition Whip –42nd ParliamentFebruary 16, 2021 - May 3, 2022
Non-voting Member, Standing Committee on Finance and Economic Affairs –42nd ParliamentMay 12, 2020 - October 9, 2020
Member, Select Committee on Financial Transparency –42nd ParliamentOctober 2, 2018 - March 26, 2019
Critic, Agriculture and Food, Rural Development –42nd ParliamentAugust 23, 2018 - May 3, 2022
Deputy Leader, Official Opposition –42nd ParliamentAugust 23, 2018 - May 3, 2022
Chair, Standing Committee on Government Agencies –42nd ParliamentAugust 7, 2018 - February 16, 2021
Member, Standing Committee on Government Agencies –42nd ParliamentJuly 26, 2018 - August 7, 2018
Commissioner, Board of Internal Economy –42nd ParliamentJuly 18, 2018 - May 3, 2022
Chief Opposition Whip –42nd ParliamentJune 7, 2018 - August 23, 2018
Member, Standing Committee on Finance and Economic Affairs –41st ParliamentMarch 22, 2017 - May 8, 2018
Critic, Treasury Board –41st ParliamentDecember 2, 2016 - May 8, 2018
Critic, Finance –41st ParliamentDecember 2, 2016 - May 8, 2018
Commissioner, Board of Internal Economy –41st ParliamentNovember 17, 2014 - May 8, 2018
Critic, Agriculture, Food and Rural Affairs –41st ParliamentJune 25, 2014 - May 8, 2018
Deputy Whip, Recognized Party –40th ParliamentMarch 21, 2014 - May 2, 2014
Critic, Natural Resources –40th ParliamentSeptember 10, 2013 - May 2, 2014
Vice-Chair, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 27, 2013 - March 24, 2014
Member, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 20, 2013 - February 27, 2013
Vice-Chair, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 29, 2012 - September 9, 2012
Member, Standing Committee on Regulations and Private Bills –40th ParliamentFebruary 23, 2012 - February 29, 2012
Critic, Agriculture, Food and Rural Affairs –40th ParliamentOctober 25, 2011 - May 2, 2014