Pierre Marcel Poilievre is a Canadian politician who has served as the leader of the Conservative Party and leader of the Official Opposition since 2022. He was first elected as a Member of Parliament (MP) in the 2004 federal election, initially representing the riding of Nepean—Carleton before it was reconfigured as Carleton. He has served as an MP for seven terms, and since August 2025, represents Battle River—Crowfoot.