03/22/1966
https://www.presidency.ucsb.edu...
"Reason, understanding, and good will have achieved a settlement of which both our peoples can be proud."
"But we cannot abandon them simply because the price is high or the going is rough."
"At 12:01 this morning, the boundary between Mexico and the United States changed at El Paso and Ciudad Juarez."
"A relocated Rio Grande means a new boundary; a new boundary means new bridges linking our two countries."