People who are temporary or permanent residents and who do not have the same rights

What policy did "jim crow" laws put in place? black codes integration segregation 2. the supreme court case that established the doctrine of "separate but equal" was dred scott v. sandford plessy v. ferguson brown v. board of education 3. the supreme court case that overturned the doctrine of "separate but equal" wasdred scott v. sandford plessy v. ferguson brown v. board of education

This quote by presidential candidate donald trump in 2016 reveals his stance as judicial reviewer loose constructionist federalist originalist

Can someone me with these 2 questions? and tell me why it is the correct answer?