Claire Valdez leads the NY-07 Democratic primary field with strong trader consensus behind her because of high-profile endorsements from New York City Mayor Zohran Mamdani and Senator Bernie Sanders, combined with superior first-quarter fundraising that topped $750,000 and robust grassroots small-dollar support. As a first-term assembly member and Democratic Socialists of America member, she benefits from the mayor’s popularity in the Brooklyn-Queens district and early momentum in a race to replace longtime incumbent Nydia Velázquez, who retired after more than three decades. Antonio Reynoso trails as the main alternative due to institutional backing from Velázquez herself, the Queens County Democratic Party, and several unions, yet he has not closed the gap despite his profile as Brooklyn borough president. The June 23 primary remains weeks away, leaving room for late shifts from additional endorsements or turnout patterns among progressive and labor voters.