Which statement best summarizes the main idea of the article?
1. American Indian tribal groups have specific guidelines and rules to determine membership in their communities.
2. Voting rights remain a major issue, and a number of leaders are working to secure and protect the right to vote in America. 3.Some leaders in the federal government are immigrants who came to America at a young age or are the children of immigrants.
4. As more people of color have attained important roles in government and politics, the US government has better reflected the diversity of US society.​