Answer:
Manifest Destiny greatly impacted the country, it was the push behind America's expeditious expansion into the West. Some examples of it's impact on the country are that it helped fuel western settlement, and pushed many Native American out of America.
Explanation:
Ok, so that there is a bunch of stuff. There is evidence that President Roosevelt knew there would be an attack on Pearl harbor, but he decided to let it happen so that the US would be in on the war (we were not before the attack).
There's not a straight forward answer, but I hoped this helped!
They can declare laws unconstitutional. This makes that a law doesn't agree with the constitution.
There was a war in 1928 or ask Google