I think it was the Soviet party, because during the Cold War before Gorbachev, the only political party you were allowed to be a part of was the Soviet Party, but I don’t know what time frame this question refers to.
Answer:
decide how America was going to be governed Explanation:
The information found by Lewis and Clark showed many new places to settle, what the new land was like, and what could be accomplished in those areas. They found more land to farm and build homes. They also found some of the major rivers and landmarks of today.