Answer:
The relationship between the states and the federal government
<span>After the colonies became states new laws had to be written and enforced. A whole government had to be created from the ground up. Officials had to be elected. A capital city had to be chosen so there was somewhere to have the government buildings in one place.</span>
They had to ratify the Fourteenth Amendment.
Well basically it just caused a huge conflict because European countries declared war on France... I think