Lyndon Johnson actually said...

Now, Therefore, I, Lyndon B. Johnson, President of the United States of America, call upon the people of the United States to observe the we...

You personally are asking of the British people today the same fortitude--the same resolve--that turned the tide in those days.

We believe your firmness and your leadership have impressed the people of the world deeply in the tradition of the great men of Britain.

You and I know it most appropriately as the 'imbalance of payments.'