A successful partnership requires strong political leadership. Senior public officials must be willing to be actively involved in supporting the concept of PPPs. Officials need to be well-informed with respect to potential benefits. A political leader can play a critical role in minimizing misperceptions about the value to the public of a PPP and serving as a highly visible champion for the project, such as London's mayor with respect to the Central London Congestion Charging PPP Program. Lack of senior political support can doom a PPP project even if otherwise justified.