1990Flipped from DemocraticFinal resultsIncumbent defeated
1990 election for Arizona Legislative District 5
Arizona State Senate · Arizona
Jim Buster (R) won with 50.4% of the vote, defeating Jones Osborn (D) by 0.8 points, a seat Democrats won last time.
Jim BusterRepublican · winner
50.4%10,836
Jones OsbornDemocrat · incumbent
49.6%10,659
21,495 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET