Building dams on the Chagres river to create Gatun lake
Usually, in an AP Language style, a counterclaim can be added by this format:
Intro
Body 1
Body 2
Counterclaim + Reasoning
Conclusion
Some people like to do:
Intro
Counterclaim + Reasoning
Body 1
Body 2
Conclusion
it really just depends on how much you want to go to convince the audience, perhaps.
Assuming you're referring to Thomas Jefferson and Alexander Hamilton, the thing they had in common was that they both believed the US should break ties with Great Britain, although they disagreed heavily after this break.