To accurately assess the effect the Louisiana Purchase would have on the United States, I would need to see the excerpt you are referring to. Please provide the excerpt so I can analyze it and answer your question more effectively.
To answer this question, we'll need to analyze the given excerpt and draw conclusions based on the information provided. However, without the actual excerpt, I am unable to provide a specific answer. If you can provide the excerpt or any relevant information from it, I'd be happy to assist in explaining how to infer the effect the Louisiana Purchase would have on the United States.
