One reason the Lewis and Clark Expedition built Fort Clatsop was to trade with Asian countries that bordered the Pacific.
provide shelter for the expedition’s many settlers.
establish American claims to the vast region.
declare war on the British in nearby Canada.

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”

me on my last question.