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Jack earned his bachelor's degree in mechanical engineering from New Mexico State University. He lives in Chandler, AZ.

Ballotpedia

Jack previously worked as the facilities manager for the General Motors Desert Proving Ground.

Jack Sellers currently serves as the chairman of the Maricopa County Board of Supervisors. He was first appointed to the board in 2019, first elected in 2020, and is serving his first full term. He previously served as the vice mayor of the City of Chandler, the chairman of the State Transportation Board, and the chairman of the Maricopa Association of Governments Transportation Policy Committee.

Promises "to create a pro-family, pro-business environment."

- Promises "to create a pro-family, pro-business environment."

Economy

As of June 17, 2025, Jack Sellers’s website did not contain information on this issue.

Public Services

Housing & Urban Development

Candidate website

Three in race for Maricopa County Board of Supervisors in District 1

Believes extending Prop 400 is essential to support the transportation system for a growing population and economy.

Believes extending Prop 400, which created a half-cent transportation tax that funds roads and public transportation, is essential to support the transportation system for a growing population and economy.

Supports intelligent infrastructure development and autonomous vehicles to create a "Smart Region." Advocates for collaboration with MAG, Valley Metro, ADOT, and the Federal Highway Administration.

Supports the creation of a "Smart Region" by developing infrastructure, implementing autonomous vehicles, and collaborating with the Maricopa Association of Governments (MAG), Valley Metro, Arizona Department of Transportation (ADOT), and the Federal Highway Administration.

Supports a "thoughtful infrastructure plan" to sustain regional growth and create a pro-family, pro-business environment.

- Believes extending Prop 400, which created a half-cent transportation tax that funds roads and public transportation, is essential to support the transportation system for a growing population and economy.
- Supports the creation of a "Smart Region" by developing infrastructure, implementing autonomous vehicles, and collaborating with the Maricopa Association of Governments (MAG), Valley Metro, Arizona Department of Transportation (ADOT), and the Federal Highway Administration.
- Supports a "thoughtful infrastructure plan" to sustain regional growth and create a pro-family, pro-business environment.

Transportation & Infrastructure

Jack Sellers Elected Chairman of Maricopa County Board of Supervisors

Supported the creation of a Public Safety Funding Citizen’s Committee to determine the best way to secure long-term funding for public safety and criminal justice.

- Supported the creation of a Public Safety Funding Citizen’s Committee to determine the best way to secure long-term funding for public safety and criminal justice.

Public Safety

Education

Twitter

Endorsed by the Mesa Chamber of Commerce.

Endorsed by the Greater Phoenix Chamber PAC.

Endorsed by the Chandler Law Enforcement Association.

Endorsed by the Arizona Police Association.

Endorsed by the Arizona Chamber of Commerce.

Endorsed by the Scottsdale Area Association of Realtors.

Endorsed by former Arizona governor Jan Brewer.

- Endorsed by the Mesa Chamber of Commerce.
- Endorsed by the Greater Phoenix Chamber PAC.
- Endorsed by the Chandler Law Enforcement Association.
- Endorsed by the Arizona Police Association.
- Endorsed by the Arizona Chamber of Commerce.
- Endorsed by the Scottsdale Area Association of Realtors.
- Endorsed by former Arizona governor Jan Brewer.

Endorsements

Jack Sellers

Mark holds a bachelor's degree in business and corporate communications from Missouri State University. He is married to his wife, Allison, with whom he has 2 children. 

Mark owns several businesses. He is the founder and CEO of Concept2Completion, LLC, co-founder of Karvtrak, and the owner of Gameday Men's Health. 

Ballotpedia, Mark Stewart (Arizona)

Mark R. Stewart currently serves as a member of the Chandler City Council. He was elected to this position in 2016 and is serving his second term. 

Believes that integrating economic and planning development will yield significant benefits for both businesses and neighborhoods.

Supports policies that attract sustainable industries and high-paying jobs, while also focusing on local small businesses and entrepreneurs.

Advocates for policies that aim to attract sustainable industries and well-paying jobs, while also focusing on helping local small businesses and entrepreneurs.

Supports financial responsibility with citizen tax dollars, and plans to focus on "auditing and compliance to prevent waste and ensure funds are directed towards necessary services."

Wants to foster community through economic growth and innovation.

Believes in giving back to taxpayers through tax reductions. Said, “We rarely, if ever, give back to the taxpayer.”

Supports the one-cent drop in sales taxes as a way to give back "$410,000 to Chandler residents..."

Believes inflation is severely impacting residents and opposes raising utilities and fees when the benefit is minimal.

- Believes that integrating economic and planning development will yield significant benefits for both businesses and neighborhoods.
- Advocates for policies that aim to attract sustainable industries and well-paying jobs, while also focusing on helping local small businesses and entrepreneurs.
- Supports financial responsibility with citizen tax dollars, and plans to focus on "auditing and compliance to prevent waste and ensure funds are directed towards necessary services."
- Wants to foster community through economic growth and innovation.
- Supports the one-cent drop in sales taxes as a way to give back "$410,000 to Chandler residents..."
- Opposes inflation. 

Believes "the most effective government operates minimally yet efficiently..."

Wants to increase voter participation in local elections and believes, saying "The impact of voter participation in local elections cannot be overstated."

Wants to improve transparency in government and for citizens to participate in making county decisions.

Supports upholding transparency and integrity in elections, and advocates for modern voting processes and increased voter access.

Wants to use technology to help improve communication with county government and the public.

Wants to increase citizen engagement in local government affairs, saying  "Participating in local government meetings, joining community forums, and volunteering for local campaigns are all ways to influence local governance."

Believes the primary responsibilities of any local government are public safety, clean water, and well-maintained infrastructure.

- Believes "the most effective government operates minimally yet efficiently..."
- Wants to increase voter participation in local elections and believes, saying "The impact of voter participation in local elections cannot be overstated."
- Wants to improve transparency in government and for citizens to participate in making county decisions.
- Supports upholding transparency and integrity in elections, and advocates for modern voting processes and increased voter access.
- Wants to use technology to help improve communication with county government and the public.
- Wants to increase citizen engagement in local government affairs, saying  "Participating in local government meetings, joining community forums, and volunteering for local campaigns are all ways to influence local governance."
- Believes the primary responsibilities of any local government are public safety, clean water, and well-maintained infrastructure.

As of June 17, 2025, Mark R Stewart’s website did not contain information on this issue.

Believes efforts to maintain and expand infrastructure are important, including roads, public transit, and digital infrastructure.

- Believes efforts to maintain and expand infrastructure are important, including roads, public transit, and digital infrastructure.

Believes ensuring public safety involves policing, emergency services, and community-based programs.

Believes safety is significant and supports policing, emergency services, and community-based programs to address safety concerns. 

The candidate's website says, "Taking a Stand Against Human Trafficking"

Supports working with local police, non-profit organizations, and other cities to address human trafficking. 

- Believes safety is significant and supports policing, emergency services, and community-based programs to address safety concerns. 
- Supports working with local police, non-profit organizations, and other cities to address human trafficking. 

Wants to improve educational outcomes countywide.

- Wants to improve educational outcomes countywide.

Instagram

Mark R Stewart

- Members of the board of supervisors work together to set and implement county policy. 
- The board of supervisors is tasked with approving the county budget, setting local tax rates, approving plans for land use in the county, and appointing county officials. 
- Board of supervisors members work to improve the county’s education system, ensure safety, make environmental and business policies, and run the county transportation network. 
- Members of the board of supervisors represent specific areas of the county. 
- Most board of supervisors members in Virginia are elected in odd years to four-year terms. Elections are partisan. 

Maricopa County Supervisor, District 1, Republican Primary

Election results

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