How did presidential addresses and supreme court rulings begin to change the lives of the american people beginning in the mid-20th century?

The Presidential addresses and Supreme Court rulings begin to change the lives of the American people beginning in the mid-20th century through a series of debate. However, the Brown versus Board of Education prevented the segregation of schools and that every person living in the America whether black or white must have equal rights. 

the answer is suffrage

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