State Representative, District 25
July 21, 2026 · State House District 25; Arizona · State house district · primary
How do we calculate vote impact?
Vote impact = representation (how much weight one vote carries here, the smaller the district's population, the higher the representation) + decisiveness (how likely this race is to be close, based on past results and number of candidates).
Representation: Low · 0 out of 100
This district is large for its type, so each vote is a smaller slice of the outcome. About 275,769 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(275,769 ÷ 275,769) ÷ ln(275,769 ÷ 221,081) = 0, comparing state house districts in AZ (grades: 66+ high, 33+ average, otherwise low)
Decisiveness: Unknown
No past results for this contest yet.
Low representation + unknown decisiveness → Below average vote impact.
Some data is missing, so this rating is based on partial information and capped at "High".
This office is responsible for:
- Voting on state laws and the state budget
- Representing their district in the statehouse
- Serving on committees that shape bills before final votes
- Helping district residents deal with state agencies
Affected Areas: Environment and Public Health, Reduce Wealth Gap, Anti-Corruption, Government Efficiency, Healthcare Affordability, Government Spending Reduction, Public Safety and Crime Control, Housing Affordability, Social Programs and Welfare, Public Education Quality, Gun Control, Women's Reproductive Rights, Election Integrity, Personal Income Tax Reduction, Data Privacy, Civil Rights, Corporate Accountability, Public Infrastructure
Candidates
Michael Carbone
Republican · Incumbent · declared
Michael Carbone is the Republican Arizona state representative for District 25 and House majority leader. His campaign biography says he previously served as an elected school-board member and has worked in education policy.
Records: Environment and Public Health 1 for, Government Efficiency 3 for, Housing Affordability 3 for, Social Programs and Welfare 1 for
Nick Kupper
Republican · Incumbent · declared
Nick Kupper is a Republican Arizona state representative for District 25. His campaign biography identifies him as a 20-year U.S. Air Force veteran and father of five who took office in 2025.
Records: Government Efficiency 1 for, Healthcare Affordability 1 for, Housing Affordability 2 for, Public Safety and Crime Control 2 for
Tiffany Byrne
Democratic · declared
Tiffany Byrne is a Democratic candidate for Arizona House District 25. Her campaign biography describes more than 20 years as a classroom teacher followed by education-leadership work overseeing K-12 science.
Records: Public Education Quality 1 for
Election sources
Source: apps.arizona.vote
Source: azsos.gov