2010Final results
2010 election for Arizona Legislative District 1
Arizona State Senate · Arizona
Steve Pierce (R) won with 64.8% of the vote, defeating Bob Donahue (D) by 29.7 points.
Steve PierceRepublican · winner · incumbent
64.8%52,458
Bob DonahueDemocrat
35.2%28,463
80,921 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET