At some time, Lippmann became a member, alongside Sinclair Lewis, of the New York Socialist Party. In 1911, Lippmann served as secretary to George R. Lunn, the first Socialist mayor of Schenectady, New York, during Lunn's first term. Lippmann resigned his post after four months, finding Lunn's programs to be worthwhile in and of themselves, but inadequate as Socialism.