2006Final results
2006 election for Arizona Legislative District 20
Arizona State Senate · Arizona
John Huppenthal (R) won with 53.0% of the vote, defeating Donna Gratehouse (D) by 6.0 points.
John HuppenthalRepublican · winner · incumbent
53.0%28,868
Donna GratehouseDemocrat
47.0%25,603
54,471 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2006
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET