Enforce a stricter code of conduct more closely following the rules and guidelines of the supreme court
They were trying to make the country better
For the Louisiana purchase question, it more than doubled the size of the united states. As for the second question I believe the answer would be "Thomas Jefferson was eager to explore the west to ensure the survival and prosperity of the United States"
On August 14, after fighting its way through northern China, an international force of approximately 20,000 troops from eight nations (Austria-Hungary, France, Germany, Italy, Japan, Russia, the United Kingdom and the United States) arrived to take Beijing and rescue the foreigners and Chinese Christians.