If you want to know what the <span>government can do</span>, specifically, <span>you can</span> look at ... Really, two things: first, don't think that the powers listed here are the <span>government's</span> only powers.
<span>The Fifteenth Amendment gave black men the right to vote, but Southern Democrats and the Ku Klux Klan deviously tried to keep Blacks from voting. </span>
The correct answer for the question that is being presented above is this one: "Plessy was of mixed heritage." Justice John Harlan’s dissent to the court’s decision in Plessy v. Ferguson was based on the premise <span>Plessy was of mixed heritage. </span>