Kristie O'Brien
Won the 2026 race for Arizona Legislative District 13.
- Last margin
- +9.9
- Won 2026
- Elections
- 1
- 2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative records
Every race O'Brien has run
Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means O'Brien won voters the party’s presidential nominee did not; primaries have no baseline.
| Year | Office | Stage | Result | Opponents | Share | Margin | Raised | Baseline | Against baseline |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | Arizona State Senate, District 13 | General | Won | Julie Willoughby (R), Unofficial Write-in (I) | 54.9% | D+9.9 | $263K | R+1.2 |
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Money
O'Brien’s campaign fundraising.
- Raised, 2025–26
- $263K
Source: Arizona Secretary of State filings through Sep 30, 2026Updated Nov 7, 2026, 1:20 PM ET
What’s next
From campaign filings, not from public statements.
| Kristie for Arizona State | Active |
Source: Arizona Secretary of State filings through Sep 30, 2026Updated Nov 7, 2026, 1:20 PM ET
Who O'Brien has run against
- Julie Willoughby (R) · 2026 election, won
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)
The seat
- Arizona Legislative District 13 · lean R+0.1 · 14th most Democratic of 30
Source: 99chambers: presidential results on current lines (MEDSL precinct returns)