The two superpowers was the USA & Soviet Union.
Hope this helps if not I’m sorry
I think he meant that even though the Constitution is a set of laws we have to follow, individuals have unalienable rights. Also, he could've been talking about moral ideas.
Charles pinckney was the last governor of south carolina in theera of the articles of confederation
If you meant could then the next one in line would be the speaker of the house.