Progressive inits. in the U.S. Congress

AOC

Think of the youngest woman ever elected to Congress and her well-known initials.

This clue asks for the initials of a well-known progressive figure in the U.S. Congress. "Progressive" hints at a left-leaning politician, and "inits." is crossword shorthand for initials—here, the first letters of Alexandria Ocasio-Cortez’s name. She’s often referred to by her initials, AOC, making it a concise and recognizable answer.