The correct answer to this open question is the following.
The role of political parties in today's national scene has raised many concerns. As we have witnessed in recent years and even months, political parties had lost their course. Personal agendas, political interests, individual interests, resentments, and even vengeance, are part of US politics right now.
That is exactly why former US President George Washington was concerned and never supported the idea of political parties because they could create so much conflict and divide the nation. And so it was.
Instead of being political groups aimed to serve the interests of teh citizens, today political parties have too many interests at hand, few of them, really to help and serve the American people.