Sivona was walking home from the gym Sunday afternoon when her phone started buzzing with dozens of texts. The news had just broke that President Joe Biden was stepping down from the 2024 race and endorsing Vice-President Kamala Harris; the 30-year-old New Yorker, who works in corporate, is a member of the Alpha Kappa Alpha sorority and says, “The group chats for anything AKA-related were going crazy.