"The Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State."
This amendment grants immunity to the states from lawsuits by out-of-state citizens and foreigners not living within the state borders. This lays the foundation for sovereign immunity.
The 11th Eleventh Amendment Defined
This link directs to an analysis of the eleventh amendment. Court cases where it has been applied are listed and explained. This provides a greater understanding of how sovereign immunity can be applied.
The host of this clip explains that the eleventh amendment prohibits the United States from extending lawsuits against states who are prosecuting citizens that reside in other states. This limits the power of the federal government while giving more power to the states.