2012Final results
2012 election for Arizona Legislative District 15
Arizona State Senate · Arizona
Nancy Barto (R) won with 73.1% of the vote, defeating Dennis Grenier (Lib) by 46.3 points.
Nancy BartoRepublican · winner · incumbent
73.1%58,213
Dennis GrenierLibertarian
26.9%21,384
79,597 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 2012
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET