The Kennedy immigration act was in 1965. At that time Reagan was hosting Death Valley days, and pondering running for Governor of California.
https://www.heritage.org/immigration/commentary/kennedy-dupes-republicans-immigration-bill ……. More than 20 years ago, President Ronald Reagan and Congress experimented with amnesty. It failed miserably
Kennedy and immigration: He changed the face of America
In the campaign for the 1986 amnesty law, Kennedy predicted that the law would grant citizenship to no more than 1.3 million people. “We will secure the borders henceforth. We will never again bring forward another amnesty bill like this,” he said.
Right you are!
IIRC, LBJ was resident?