What can the supreme court change ?

Depending on the issue, Congress can pass a new law (or try to amend the constitution), and assuming the President signs it, that can make a U.S. Supreme Court decision moot. For example, pre-civil war the Supreme Court never overturned slavery.

Explanation:

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.

d) in the state of iowa