2004 Washington Initiative 872
| Washington Blanket Primary Initiative | |||||||||||||
| Results | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
 | |||||||||||||
| Results by county:  
 | |||||||||||||
| Source: Washington Secretary of State | |||||||||||||
| Elections in Washington (state) | 
|---|
Initiative 872 was a 2004 ballot initiative that replaced the open primary being used in Washington state with a top-two nonpartisan blanket primary. It was challenged in court up to the US Supreme Court, which upheld the top-two primary in Washington State Grange v. Washington State Republican Party.