The New Democratic Party of Ontario (NDP) is a political party in the province of Ontario, Canada. Founded in 1961, it aims to represent the interests of working-class individuals and promote social justice, environmental sustainability, and economic equality. The party typically advocates for policies such as universal healthcare, affordable housing, and workers' rights. The NDP is one of the major political parties in Ontario, often competing with the Progressive Conservative Party and the Ontario Liberal Party. The party's leadership has included notable figures like Andrea Horwath, who served as the party leader from 2009 to 2022. The NDP has formed the provincial government in the past, most recently from 1990 to 1995.