What it did is it doubled its size
<span>Facing impeachment by Congress, Nixon resigned from office on August 9, 1974. He was replaced by Vice President Gerald Ford (1913-2006), who a month later pardoned Nixon for any wrongdoing. A number of administration officials were eventually convicted of crimes related to the Watergate affair.</span>
Answer:
The Union's victory showed that a stronger central government is more effective, and the federal government owned the south for years after that to help rebuild from the civil war, giving them much more power over the south.