As the Supreme Court gears up to hear the Arizona immigration case, take a trip back to 1964 as President Lyndon Johnson discusses the Bracero Agreement, a controversial work program for Mexican farm laborers.

In this clip, President Johnson calls James Farmer, a vocal opponent of the program, to relay his conversation with President Adolfo Lopez Mateos of Mexico about ending the Bracero Agreement. Farmer had long been concerned that the program was taking jobs from American workers, and in this recording LBJ notes that Lopez Mateos did not object to ending the program. As hinted by LBJ in this recording, the labor arrangement did not last much longer into 1964.