Also in May 2004, Volpe wrote an official letter to Toronto Mayor David Miller, promising that the federal government would not order the construction of a bridge to the Toronto City Centre Airport against the wishes of Toronto City Council. Miller had been elected in the 2003 municipal election on a promise to cancel the bridge, and had previously expressed concern that the federal Toronto Port Authority might authorize its construction even after the city withdrew support. Volpe later expressed concerns about the continued viability of the Toronto Waterfront Revitalization Corp., and emerged as a prominent critic of Miller's plans for waterfront management.