2018Final results
2018 election for Arizona Legislative District 5
Arizona House of Representatives · Arizona
2 seats: Regina Cobb (R), Leo Biasiucci (R) won.
2 seatsRegina CobbRepublican · winner · incumbent
44.7%46,928
Leo BiasiucciRepublican · winner
37.4%39,260
Mary McCord RobinsonDemocrat
17.7%18,566
104,939 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET