Answer:
The balance shifted in many ways both economic and political.
Before the war, Germany, Russia, and Austria had their empires. After the war Austria-Hungary was ended, Germany lost territory and was no longer a world power and was ruined, and Russia stopped being an Empire and became USSR. There was a new nation called Yugoslavia and many people in Europe started to get influenced by communism. France emerged as a proud victor from the war and along with Britain was the dominant force in Europe.
If the Federal government can perform an enumerated power without a particular law or action, then that law or action is unnecessary and therefore unconstitutional.
Some candidates thought slavery wasn’t so bad
The issue of whether to permit slavery in the territories organized in this new land consumed Congress at the end of the 1840s. During the war, Congressman David Wilmot introduced the Wilmot Proviso, a proposal to ban slavery in any new territory acquired from Mexico. The measure passed in the House of Representatives but failed in the Senate.
Congress was also seeking resolutions for several other controversial matters. Antislavery advocates wanted to end the slave trade in the District of Columbia, while proslavery advocates aimed to strengthen fugitive slave laws. But the most pressing problem was California: the many emigrants who had flocked to the territory upon the discovery of gold in the late 1840s had forced the question of its statehood and status as a slave or free state.
The presidential election of 1848 determined which of these issues would be tackled first.
There would be Major conflict at first but as I understand it would be resolved
The Second New Deal is the term used by commentators at the time and historians ever since to characterize the second stage, 1935–36, of the New Deal programs of President Franklin D. Roosevelt.