The Louisiana Purchase helped to double the size of the country and provided control of the Mississippi River. The Louisiana Purchase was a massive land purchase by the U.S. from France under President Thomas Jefferson's administration.
Reliance on individual activity I believe
Answer:
Social Darwinism and American Laissez-faire Capitalism British philosopher Herbert Spencer went a step beyond Darwin's theory of evolution and applied it to the development of human society. In the late 1800s, many Americans enthusiastically embraced Spencer's "Social Darwinism" to justify laissez-faire, or unrestricted, capitalism.
Explanation:
Basically, Texas has had underwater areas for as long as it has existed. When it was discovered that there were oil deposits there, the federal government wanted to take it away from Texas who was a recognize owner of the land. It was a case where the state and the federation had to fight in the supreme court. Politics changed because Texas started hating on anyone who tried to take it away so they switched their presidential support based on this.