Claire Valdez leads the NY-07 Democratic primary with a clear trader consensus edge, driven by strong first-quarter fundraising exceeding $750,000 and high-profile endorsements from New York City Mayor Zohran Mamdani and Senator Bernie Sanders in this open-seat race to succeed retiring Representative Nydia Velázquez. As a first-term Assembly member aligned with the Democratic Socialists of America, Valdez benefits from grassroots momentum in the progressive Brooklyn-Queens district. Antonio Reynoso, the Brooklyn Borough President, trails with institutional backing from Velázquez herself, the Queens County Democratic Party, and several major unions including the Working Families Party, though an earlier internal poll indicated tighter competition when voters were informed of the endorsement split. Minor candidates including Julie Won have drawn limited attention and resources ahead of the June 23 primary.