Which party is the left wing?

Excuse me, but I'm a bit confused by your question. Could you please clarify what you mean by "which party is the left wing"? Are you referring to a specific political context or a more general question about political ideologies? In a political context, the left wing typically refers to political parties or movements that prioritize social equality, economic justice, and progressive social policies, such as increased government intervention in the economy, stronger social welfare programs, and support for labor unions. The left wing often advocates for the rights of marginalized groups and seeks to address issues of inequality and oppression. However, the specific parties that are considered left-wing can vary greatly depending on the political system and the country in question. For example, in the United States, the Democratic Party is often considered left-wing compared to the Republican Party, while in other countries, the left wing may be represented by entirely different parties. So, if you could provide more context or specify which country or political system you're referring to, I'd be happy to give you a more accurate answer.