August 4 primary result: Jason Maki (70 percent) won the Republican nomination over Gena L. Ross (30 percent) and advances to the November 3 ballot, per plattecountylandmark.com reporting of the official results (re-verify against the certified canvass). Incumbent Scott Fricker withdrew after filing, leaving a contested Republican ballot on August 4; Mary McKenna is unopposed on the Democratic side, and independent Dale Brouk goes directly to November 3, per the certified candidate list and the Platte County Landmark.
Jason Maki · Republican▾
Director of strategy for a Missouri-based company with degrees in chemical engineering and information technology security, per the Platte County Landmark, which reports he is a member of the Missouri Sunshine Coalition and has used open-records law to scrutinize local officials. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Holding the line on taxes and cost of living, per the Platte County Landmark · Funding public safety and infrastructure first, per the Landmark · Transparency and accountability in county spending, per the Landmark
Mary McKenna · Democratic▾
Mary McKenna has spent her career in the communications industry and has lived in Platte County for more than 40 years, per The Platte County Landmark Newspaper. She is the Democratic candidate for Platte County Presiding Commissioner.
Priorities: Wants the commission to implement the voter-approved children's mental health sales tax, per The Platte County Landmark Newspaper · Wants infrastructure and public safety planning to keep pace with the county's rapid growth, per the campaign site · Emphasizes accountability and transparency in county government, per the campaign site
August 4 primary result: Mary Calvillo (40.6 percent) won the Republican nomination over Jera Pruitt (31 percent), Russ "Wojo" Wojtkiewicz (28.4 percent) and advances to the November 3 ballot, per plattecountylandmark.com reporting of the official results (re-verify against the certified canvass). A contested Republican ballot on August 4 between the incumbent and two challengers; Hans Peter is unopposed on the Democratic side, per the Platte County Landmark.
Mary Calvillo · Republican▾
Calvillo has a background in office management, executive assistance, and supervisory and customer service roles, and has lived in Platte County for 28 years, per the campaign site.
Priorities: Modernizing the clerk's office website and public-records access, per the Platte County Landmark · Speeding up the senior tax credit process, per the Landmark · Extending office hours, per the Landmark
Hans Peter · Democratic▾
Hans Peter is a Benedictine College graduate who has worked in supply chain and logistics roles, currently as a global forwarding agent for C.H. Robinson, per The Platte County Landmark Newspaper. He is the Democratic candidate for Platte County Clerk. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Wants an alternative salary-setting process so elected officials cannot set their own pay · Wants to digitize the clerk's office records using his logistics background · Pledges to keep the office strictly non-partisan (per The Platte County Landmark Newspaper)
August 4 primary result: Christopher L. Wright (60 percent) won the Republican nomination over Nicholas Palmer (40 percent) and advances to the November 3 ballot, per plattecountylandmark.com reporting of the official results (re-verify against the certified canvass). A contested Republican ballot on August 4 between the incumbent and a challenger; with no Democrat filed, the winner has a clear path to the office, per the Platte County Landmark.
Christopher L. Wright · RepublicanIncumbent▾
Worked as a drug and alcohol counselor and nonprofit case manager before being elected recorder, and served in the U.S. Army from 2001 to 2005, per the Platte County Landmark, which reports he has implemented deed-fraud protection programs. No campaign website or questionnaire response was found as of September 8, 2026.
Priorities: Legislation capping how much elected officials can raise their own pay, per the Platte County Landmark · Maintaining the office's efficiency and transparency, per the Landmark · Deed fraud protection and public education, per the Landmark
Laura Waldon is the only certified filer; unopposed candidates still print on Missouri ballots.
Laura Waldon · Republican▾
Laura Waldon is a retired CPA with more than 40 years of accounting and finance experience who has lived in Platte County since 1988, per The Platte County Landmark Newspaper. She is the Republican candidate for Platte County Auditor. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Wants rigorous reviews of county offices to maximize taxpayer value · Wants accurate, accessible budget forecasts published for residents · Opposes the incumbent auditor's 30% salary increase (per The Platte County Landmark Newspaper)
Jim Bosch is the only certified filer; unopposed candidates still print on Missouri ballots.
Jim Bosch · Republican▾
Jim Bosch was born and raised on a tobacco farm outside Weston, Missouri, and has lived in Edgerton with his family for 30 years, per The Platte County Landmark Newspaper. He is the Republican candidate for Platte County Collector. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Pledges to be a trustworthy steward of taxpayer dollars · Wants more convenient office hours for the working public · Criticizes a 30% salary increase for elected officials as unfair to other county employees (per The Platte County Landmark Newspaper)
Elliot Lahn is the only certified filer for the unexpired term; unopposed candidates still print on Missouri ballots. The Platte County Landmark reported on August 20, 2026 that Lahn withdrew his candidacy and that the county Republican central committee would name a replacement nominee by a September 11 deadline; this page keeps the certified filing until the county clerk's November candidate list confirms the substitution (re-verify after September 11).
Elliot Lahn · Republican▾
No campaign website or questionnaire response was found as of September 6, 2026.
Tony Luetkemeyer is the only certified filer; unopposed candidates still print on Missouri ballots.
Tony Luetkemeyer · Republican▾
Tony Luetkemeyer is in his second term as Missouri State Senator representing Buchanan and Platte counties, where he serves as majority floor leader, and is a practicing attorney, per KSHB. He entered the Platte County Prosecuting Attorney race after sitting prosecutor Eric Zahnd chose not to seek reelection, and he is unopposed in November.
Priorities: Pledges to hold violent offenders accountable and support victims, per the campaign site · Says he will stand with law enforcement, per the campaign site · Has pledged to retain the office's First Assistant Prosecuting Attorney if elected, per KSHB
Jerry Hickey (Republican), Tracey Steele (Democratic) meet on the November 3 ballot. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Jerry Hickey · Republican▾
Jerry Hickey co-founded the staffing firm Express Employment Professionals in 2013 with his wife Jill, per his campaign site. The firm has helped more than 20,000 people find jobs, and Hickey holds a degree from Missouri State University.
Priorities: Responsible government spending and attracting businesses through workforce training · Parental school choice options · Reducing health care costs through market competition and transparency (per the campaign site)
Tracey Steele · Democratic▾
Tracey Steele is a commercial real estate attorney with experience in commercial real estate transactions and alternative energy project finance, per his professional profile. A native Missourian, he attended Northwest Missouri State University before earning his law degree. No campaign website or questionnaire response was found as of September 6, 2026.
John Elliott (Republican), Jacoby Wynkoop (Democratic) meet on the November 3 ballot. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
John Elliott · Republican▾
John Elliott, a small business owner who grew up on a north Missouri farm, is a former Platte County Commissioner who focused on infrastructure, public safety and fiscal responsibility, per The Missouri Times. He also serves as vice chair of the Stanley M. Herzog Foundation board. No campaign website or questionnaire response was found as of September 6, 2026.
Priorities: Supporting law enforcement · Preventing foreign ownership of Missouri farmland · Eliminating the state income tax (per the campaign statement via The Missouri Times)
Jacoby Wynkoop · Democratic▾
Jacoby Wynkoop, of Rushville, works as a cook and makes plush toys, per his campaign site. He decided to run for the District 13 seat after seeing the Republican incumbent was unopposed on the ballot.
Priorities: Stronger labor protections and access to healthcare · Well-funded public schools (per the campaign site)
Frank Pendleton (Republican), Ashley Aune (Democratic) meet on the November 3 ballot; Ashley Aune is the sitting member per the House roster. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Frank Pendleton · Republican▾
Frank Pendleton is a retired principal scientist and program manager with 43 years of experience, including work on national security projects and disaster-response deployments, per his campaign site. He has served as chairman of a community credit union board and previously worked at MRIGlobal and as an adjunct professor at Rockhurst University.
Priorities: Reducing taxes and cutting wasteful state spending · Expanding school choice and improving academic outcomes · Increasing law enforcement presence and reforming juvenile justice (per the campaign site)
Ashley Aune · DemocraticIncumbent▾
Ashley Aune serves as Missouri House Minority Leader after previously serving as Minority Whip, per her official Missouri House biography. First elected in 2020, she holds a bachelor's degree in communication studies from the University of Kansas and represents part of Platte County, including Kansas City's Northland. No campaign website or questionnaire response was found as of September 6, 2026.
Mike Jones (Republican), Shereka Barnes (Democratic) meet on the November 3 ballot. Missouri has no runoffs; the August 4 primary winner of each party is the nominee, and unopposed nominees still print. The field is the Missouri Secretary of State's certified general election candidate list (certified August 25, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
Mike Jones · Republican▾
Mike Jones currently represents Missouri House District 12, having been elected in November 2024, per his official House member page. He is a Kansas City native who served in the U.S. Air Force from 1997 to 2001 performing maintenance on AC-130 Gunships, and owns Elite Painting KC, a residential painting business. No campaign website or questionnaire response was found as of September 6, 2026.
Shereka Barnes · Democratic▾
Shereka Barnes is a member of the Park Hill School District school board with professional experience as an educator and healthcare professional, per her campaign site.
Priorities: Investing in public education · Expanding access to healthcare coverage · Addressing the rising cost of living (per the campaign site)
These race previews show candidates we’re tracking now. A ZIP code shows your statewide and congressional races; a street address adds county and city contests. Local races are address-specific. This guide previews tracked contests, while the lookup tool narrows the list to a voter’s exact address. Tap any name to see the race, full candidate profiles, and everything else on your exact ballot. Missouri nominees were set by the August 4 primary (plurality, no runoffs) and meet on the November 3 ballot; unopposed nominees still print. All 163 state House seats, the even-numbered state Senate districts, partisan circuit judgeships in non-plan circuits and the county offices on the four-year off-presidential cycle (presiding commissioner, clerk, circuit clerk, auditor, recorder, collector, prosecuting attorney) are up; sheriff, assessor, treasurer and the associate commissioners were elected in 2024, per the Secretary of State.
