Price then managed Lindsay's successful 1965 mayoral race. Price then served as deputy mayor of New York City under Lindsay, becoming (at age 33) the city's youngest deputy mayor. Price's portfolio was operations. Although his tenure was short (just over one year), Price was involved in a number of important events, including the negotiated ending to the thirteen-day 1966 New York City transit strike, the enactment of a New York City income tax, and "increased financial concessions from the Port Authority of New York and New Jersey in return for approval of a World Trade Center downtown." Price also killed a proposal by Robert Moses to construct an eight-lane Lower Manhattan Expressway, which would connect the Holland Tunnel to the Manhattan Bridge and Williamsburg Bridge.