What was martin luther king, jr., referencing in the passage that brought him to lead a protest in birmingham?

Mr. Martin Luther King Jr. was a social activist and baptist minister who played a key role in the Americans civil rights movement from the mid 1950s until his assassination  in 1968.

The passage that brought him to lead a protest in Birmingham  according the his letter from the jail: "There are just laws and there are unjust laws  I would agree with St. Augustine that an unjust law is not a law at all" and he cited to Mr. Thomas Aquinas an unjust law is a human law that is not rooted in eternal and natural law.

to oppose fdr’s new deal

explanation:

the american liberty league. the american liberty league was a nonpartisan organization formed in 1934 in opposition to the new deal. the organization's stated goal was “to defend the constitution and defend the rights and liberties guaranteed by that constitution.”

what is this news

explanation: