Final answer:
In the United States political system, key parties have a lot at stake. They compete to win elections, implement policy, and build coalitions of voter support. The party in power has an advantage in meeting its policy objectives, while the minority party may face challenges in accomplishing its goals. The major parties tend to take moderate positions to appeal to a wide range of voters.
Step-by-step explanation:
The key parties in the United States political system have a lot at stake. For example, political parties compete to win elections and implement policy. If a party takes a broad position on issues, its members may disagree with each other, making it difficult to pass legislation. The party in power also has an advantage in meeting its policy objectives and can relegate the minority party to the position of obstructionists. Furthermore, the two major parties in the United States tend to gravitate towards a middle position to appeal to a wide range of voters.