Winston's best describes how the process of westward expansion affected American political culture the addition of new States led to the respect for states rights but also led to the decrease in the power of urban majority

Winston's statement accurately captures the dual impact of westward expansion on American political culture. The addition of new states during westward expansion did indeed contribute to the respect for states' rights, as each new state brought its own unique set of values, interests, and political priorities. This emphasis on states' rights supported a more decentralized political system, wherein the individual states had significant control over their own governance.

Consequently, the power of the urban majority declined as the country expanded westward. The new states, often located in rural areas, introduced a more conservative and agricultural perspective that contrasted with the urban, industrialized areas of the East. As a result, urban areas lost some of their influence over national politics, as their interests were increasingly challenged by the growing influence of the rural states.

Overall, the process of westward expansion shaped American political culture by reinforcing the significance of states' rights and diminishing the power of the urban majority. This dynamic, in turn, had lasting implications for the balance of power and the relationship between different regions within the United States.