An English proverb says that every cloud has a silver lining, and this is a beautiful definition of hope. When a bright spot opens in a dark political moment, it's worth celebrating. A successful shared leadership experience has both surprised and excited many people affected by so-called "democratic fatigue." On June 13, Zohran Mamdani and Brad Lander, Chief Financial Officer of the City of New York, announced a cross-endorsementMamdani asked his voters to vote for Lander as a second candidate, and Lander, in turn, did the same for Mamdani. The two were vying to win the Democratic Party nomination for mayor of New York, but their rivalry didn't prevent a close alliance. If one of them was eliminated, the other's votes would flow directly to the incumbent candidate, strengthening his position. Together, they were much stronger than apart: Lander brought political structure, his base in Brooklyn, and enormous experience; Mamdani ran a vibrant campaign among young people, immigrants, and progressive communities.