United states v windsor please support me with below

Question

United States V. Windsor

Please support me with below questions, as case doesn't come very clear.

1. Parties [Identify the plaintiff and the defendant]
2. Facts [Summarize only those facts critical to the outcome of the case]
3. Procedure [Who brought the appeal? What was the outcome in the lower court(s)?]
4. Issue [Note the central question or questions on which the case turns]
5. Explain the applicable law(s). Use the textbook here. The law should come from the same chapter as the case. Be sure to use citations from the textbook including page numbers.
6. Holding [How did the court resolve the issue(s)? Who won?]
7. Reasoning [Explain the logic that supported the court's decision]