Lyndon Johnson actually said...
I, Lyndon B. Johnson, President of the United States of America, acting under the authority vested in me by the Constitution and the statutes, including Section 201(a) (2) of the Trade Expansion Act of 1962, do proclaim that:
Context
Proclamation 3712—Proclamation of Trade Agreement with United Kingdom Providing Compensatory Concessions
04/04/1966