Final answer:
According to Washington, political parties can have both positive and negative impacts. They can help coordinate behavior and win elections, but extreme positions and internal disagreements can cause challenges in passing legislation.
Step-by-step explanation:
According to Washington, having political parties can result in both positive and negative outcomes. On the positive side, political parties can help coordinate behavior and win elections by building coalitions of voter support. However, if parties stake out extreme positions that few people agree with, they may become marginalized. On the other hand, if parties take too broad a position, internal disagreements may make it difficult to pass legislation. The existence of multiple parties can also lead to political fragmentation and make it harder to make decisions for the public interest.