Here is the correct answer of the given question above. The central idea about the government of the United States that is expressed in the 1879 speech by Chief Joseph is about the false promises made by the government to the American Indians. Hope this answer helps.
James Weldon Johnson's The Autobiography of an Ex-Colored Man<span> is a fictional, tragic tale about a young mulatto's coming-of-age in the early 20th century. We are meant to be sympathetic</span>