Northerners lost interest in the Reconstruction era because the Northerners got tired of trying to help fix the South's social problems and the Northerners wanted to start working on fixing their own social problems.
Hope this helps!
Hamilton meant that judges should be free from polotics so that they can interpret the law and cases in their own perspective, without judgement and/or pressure from anyone else.
1. Friends can easily be turned against each other due to political opinion because instead of looking at it and trying to understand each other’s perspectives, they may get caught up in who’s right and who’s wrong and arguments like this can end a friendship.
2. it is important to understand people who think different then you because they may be looking at it from a perspective you have never looked at it from before and you may gain information from their perspective that can change your point of view, or make your opinion even stronger.
I hope this helped :)