Answer:
Teapot dome scandal, involved secretary Interior, Albert Fall who accepted valuable gifts & large sums of money from private oil companies. in exchange Fall allowed the oil companies to control government oil reserves. He was the 1st cabinet member ever to be convicted of his crimes while in office.
Explanation:
The first major domestic crisis of the US government under the Constitution resulted from the federal government exercising its new right to tax the states in order to bring in more revenue to pay down the war debt.
Because it was To get more land to get more ressources that's why countries get involved in wars
Im not a 100% but i believe its Popular Sovereignty