How did nationalism and imperialism's go together as powerful ideas in the early 20th century?

What did the us civil rights movement gain new momentum after world 2

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution

Which is the best description of a political campaign tactic during the ele tion of 1828