State Representative District 13
August 4, 2026 · State House District 13; Michigan · 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: Average · 51 out of 100
This district is mid-sized for its type, so each vote carries average weight. About 91,268 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(95,071 ÷ 91,268) ÷ ln(95,071 ÷ 87,822) = 51.47, comparing state house districts in MI (grades: 66+ high, 33+ average, otherwise low)
Decisiveness: Unknown
No past results for this contest yet.
Average representation + unknown decisiveness → 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
Casey Armitage
Republican · declared
Casey Armitage is a Republican candidate for the Michigan House of Representatives in District 13. He is president of Michigan Open Carry Inc.
Records: Gun Control 1 against
Julie Leonardi
Republican · declared
Julie Leonardi is a Republican candidate for the Michigan House of Representatives in District 13. She works as a school bus driver.
Mai Xiong
Democratic · Incumbent · declared
Mai Xiong is a Democratic member of the Michigan House of Representatives representing District 13 (parts of Warren, Roseville, and St. Clair Shores) since 2024. She is seeking re-election.
Records: Healthcare Affordability 1 for, Public Education Quality 1 for
Mark Thomas Foster
Republican · declared
Mark Thomas Foster is a Republican candidate for the Michigan House of Representatives in District 13, running in the August 2026 primary.
Election sources
Source: mi-boe.entellitrak.com