JoAnna Mendoza
Won the 2026 race for Arizona's 6th District.
- Last margin
- +8.0
- Won 2026
- Elections
- 1
- 2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative records
Background
As listed by the official candidate list, Wikidata and campaign filings. 99chambers does not summarize platforms or endorsements.
- On the ballot as
- former veteran services representative for U.S. Representative Tom O'Halleran
Every race Mendoza has run
Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means Mendoza 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 | U.S. House, AZ-6 | General | Won | Juan Ciscomani (R), Jereme Peters (L), Gary Swing (G) | 52.9% | D+8.0 | $11.2M | R+0.8 |
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Money
Mendoza’s campaign fundraising, and outside money in Mendoza’s races this cycle.
- Raised, 2025–26
- $11.2M
- Outside, for Mendoza
- $2.5M
- Outside, against Mendoza
- $1.8M
Source: FEC filings through Oct 14, 2026Updated Nov 3, 2026, 2:14 AM ET
What’s next
From campaign filings, not from public statements.
| MENDOZA FOR CONGRESS FEC | Active |
Source: FEC filings through Oct 14, 2026Updated Nov 3, 2026, 2:14 AM ET
Polls of Mendoza’s races
The 2026 general average had Mendoza ahead by 0.7; Mendoza won by 8.0.
| Race | Average | Result |
|---|---|---|
| 2026 · 3 polls | D+0.7 | D+8.0 |
Source: 99chambers polling average on Election Day; 2026 results: Arizona Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Who Mendoza has run against
- Juan Ciscomani (R) · 2026 election, won
Source: 99chambers results archive; 2026: Arizona Secretary of State (unofficial)
The seat
- Arizona's 6th District · lean R+0.7 · 211th most Democratic of 435
FEC H6AZ06099
Source: 99chambers: presidential results on current lines (MEDSL precinct returns); Identity links: Wikidata, congress-legislators, Open States, FEC