4 candidates are tracked for Arizona House District 19 on the November 3, 2026 ballot: Lupe Diaz, David Gowan, Jackie O'Donnell Anderson and Aiden Nicholette Swallow. Candidate information follows official Pima County election filings; verify with the official election office linked below.
Lupe Diaz (Republican), David Gowan (Republican), Jackie O'Donnell Anderson (Democratic), Aiden Nicholette Swallow (Democratic) are on the November 3 ballot for Arizona House District 19 (2 seats; vote for up to 2); Lupe Diaz is the sitting member, per the azleg.gov member roster (57th Legislature). Not on the November ballot: Gail Griffin, the sitting member per the roster. Nominees were chosen at the July 28 primary or by petition/nomination for minor parties and independents. The field is the Secretary of State's 2026 General Election (Election 69) certified candidate list, as read September 10, 2026. This seat is elected by district; only the district covering your address appears on your ballot.
State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.
This race. Voters choose 2; the top 2 finishers win seats. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Lupe Diaz, is on the ballot.
Arizona › Pima County › Arizona House District 19
Republican Incumbent
Per the campaign site.
Lupe Diaz is the Republican State Representative for Arizona House District 19, per the campaign site, previously having served as chaplain to the legislative district before being asked to serve as State Representative.
Republican
David Gowan is the Republican candidate for Arizona House District 19 on the November 3, 2026 ballot, per the Secretary of State's 2026 General Election certified candidate list. He currently serves as the district's state senator and previously served in the Arizona House from 2009 to 2017, including as the 52nd Speaker of the House from 2015 to 2017. No campaign website was found as of September 10, 2026; the Secretary of State's certified candidate listing is the only verifiable source for David Gowan.
Democratic
Per the Sierra Vista Herald/Review.
Jackie O'Donnell Anderson is the Democratic candidate for Arizona House District 19 on the November 3, 2026 ballot, per the Secretary of State's 2026 General Election certified candidate list. A retired emergency department registered nurse with 42 years of experience, including 19 years at a critical access hospital, per the Sierra Vista Herald/Review. No campaign website was found as of September 10, 2026; the Secretary of State's certified candidate listing is the only verifiable source for Jackie O'Donnell Anderson.
Democratic
Per the campaign site.
Aiden Nicholette Swallow is the Democratic candidate for Arizona House District 19 on the November 3, 2026 ballot, per the Secretary of State's 2026 General Election certified candidate list. A former U.S. Army Human Intelligence professional with 20 years of military service, she grew up in poverty in the district.
Who is running for Arizona House District 19 in 2026?
4 candidates are tracked for Arizona House District 19 on the November 3, 2026 ballot: Lupe Diaz, David Gowan, Jackie O'Donnell Anderson and Aiden Nicholette Swallow. Candidate information follows official Pima County election filings; verify with the official election office linked below.
When is the Arizona House District 19 election in Arizona?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Arizona are on the Arizona election hub at theballotbrief.com.
How do I see my exact Pima County ballot?
Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.
Candidate roster from official Pima County and state election office filings, last verified September 25, 2026. Bios and priorities carry their attribution inline.
Cross-check with the official Arizona election office, or see the full Pima County sample ballot and your exact ballot by address.
16 tracked races in Pima County, Arizona. Landed here from another county's search? Look up your own ballot below.