Merican political parties, relatively weak compared to similar nations, why and what are consequences?

This is final exam question in essay format.

Please be sure to answer QUESTION properly. I do not worry about copying other people stuffs. So,you are feel free to use any sources without citations. I do not need proper bibliography too. But you must make sure that sources are answering the question. Just little bit for introduction, more body parts with facts, short conclusion will earn good marks in exam. Please do so. Thanks.