Ocasio-Cortez’s assignment to the committee was first reported by Politico late Tuesday. A senior Democratic congressional aide confirmed the move to CBS News.

The move signifies a major victory for Ocasio-Cortez and the freshman class of progressive lawmakers now in the Democratic majority. Since becoming the youngest woman ever elected to Congress, Ocasio-Cortez — increasingly known by her initials, AOC — has been a ubiquitous presence on social media, sparring with Republicans and sharply criticizing the president. She has also taken aim at fellow Democrats while advocating for a series of ambitious progressive policies, including a “Green New Deal” to combat climate change and higher taxes on the wealthy.