Answer:
The Articles of Confederation were the original governing document for the United States.
States' Sovereignty
Under the Articles, every state had sovereignty. Sovereignty is the ability to govern oneself. So, each state was independent and did not have to listen to other states or the federal government. This led to conflict between states and there was no federal government to solve disputes. Additionally, when the confederation made laws or bills to solve national issues, there was no guarantee that every state would follow the law passed by the federal government.
Federal Taxation
The federal government had no way to implement federal taxes. This means that the federal government had no way to make money. Without money, the federal government was extremely weak and unable to fulfill any duties. Since the federal government had no funding, it could not support public works or any other government programs.
National Military
The Articles did not allow for the federal government to create a military. This means that the government could not protect against international threats. Additionally, the federal government had no way to put down violent rebellions within the states. Most notably, this became an issue during Shay's Rebellion. Shay's rebellion was a violent uprising of farmers in Massachusetts. Eventually, the militia was able to put the rebellion down, but it was difficult and almost ended poorly for the state.