Arizona › Pima County › Arizona House District 19
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.
Republican · Incumbent
Lupe Diaz 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 is the sitting representative for the district, per the azleg.gov member roster (57th Legislature). No campaign website or questionnaire response was found as of September 10, 2026; the Secretary of State's certified candidate listing is the only verifiable source for Lupe Diaz.
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 or questionnaire response was found as of September 10, 2026; the Secretary of State's certified candidate listing is the only verifiable source for David Gowan.
Democratic
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 or questionnaire response 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
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.
Source: candidate campaign site, roster verified 2026-09-01.
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