Harry Truman actually said...
In many public statements, I have stressed the fact that accomplishment of this objective requires the combined efforts of Federal, State and local governments, as well as private interests, and I have emphasized the importance of carrying out the Federal Government's share of this task in a manner which will reflect the fullest participation and collaboration of the people of the areas most directly affected.
Context
Letter to Department and Agency Heads on the Report of the Water Resources Policy Commission.
03/13/1951