The President's News Conference
03/20/1946
https://www.presidency.ucsb.edu...
I wish to call to the attention of the Congress the immediate urgency of action on legislation to authorize the construction of the St. Lawr...
I strongly believe that the United States should join as a full partner with Canada in building the seaway.
The project is of great importance to our national security and our economic growth.
We should join in constructing the seaway, first, because it is important to our national security.