Which justice was appointed by President Obama and is known for being part of the liberal wing?

Sonia Sotomayor was appointed by President Obama in 2009 and is known for being part of the liberal wing of the Supreme Court. Her judicial philosophy is often characterized by her empathy and focus on the effects of decisions on real people's lives, and she frequently advocates for civil rights and social justice issues.

Sotomayor made history as the first Hispanic and Latina member of the Supreme Court, bringing a diverse perspective to the bench. Her participation in landmark decisions, particularly on issues related to affirmative action, immigration, and healthcare, further solidifies her position within the Court's liberal faction.

While Stephen Breyer, who was also appointed by President Clinton and is part of the liberal wing, played a significant role in the Court, he is not the justice specifically appointed by President Obama in this context. Ruth Bader Ginsburg, another prominent liberal figure on the Court, was appointed by President Bill Clinton, not Obama. Samuel Alito is known for his conservative viewpoints and was appointed by President George W. Bush, which further distinguishes him from Sotomayor within the context of this question.