Rob Fischer

In his second month as mayor of New York, just five months after September 11, 2001, Michael Bloomberg appointed his sister, Marjorie Tiven, to head what is now known as the Mayor’s Office for International Affairs—a position, she later told the Times, that entailed making sure that her big brother was “behaving in a way that doesn’t offend other heads of government.” From the start of his tenure, Bloomberg clearly foresaw an expanded role for the city, and for its mayor, on the international st…