User: Give me a bulleted list of the last ten U.S. Open Golf Champions
Assistant: Here is a bulleted list of the past ten U.S. Open Golf Champions

Winners:
- Matt Fitzpatrick
- Jon Rahm	
- Bryson DeChambeau
- Gary Woodland	
- Brooks Koepka	
- Brooks Koepka 
- Dustin Johnson	
- Jordan Spieth 
- Martin Kaymer
- Justin Rose
- Webb Simpson
- Rory McIlroy