Mary McKenna wants to set your tax rate. She paid her own taxes late six years out of ten.

The Presiding Commissioner signs the county budget and sets the levies. Here is how she handled her own money, her own paperwork, and her own campaign.

See the record

6 of 10

Years she paid the property tax on her own home late. Twice it was more than a year overdue. Source: Platte County Collector.

Sued by Kansas City for not paying her earnings tax.

Platte County Circuit Court · 2017

The City of Kansas City took her to court for delinquent earnings tax.

Late on her property taxes six years out of ten.

She paid her property taxes late in 2016, 2017, 2018, 2019, 2021, and 2023. Two of her tax bills sat unpaid for more than a year.

She wants new taxes. She paid her own when she got around to it.

Nearly thrown off the ballot for not filing her financial disclosure.

Platte County Clerk · April 2026

One form. One deadline. She missed it. Fourteen other candidates got it right. She couldn't.

If she can't handle the simplest requirement of running for office, how does she run a county?

Four sworn campaign reports. All four wrong.

Missouri Ethics Commission · Refiled September 23, 2026

A $2,000 PAC check left off every report. Donor totals wrong on 181 of 185 lines. She refiled all four — and the numbers STILL don't add up. And she's under an active Missouri Ethics Commission investigation for it.

She can't get the basics right on her own campaign. How can she run a county?

Told donors on camera how to hide their names. Now a state ethics case.

Missouri Ethics Commission · Case #26-0079-I

"Call your brother in law, call your mom… It doesn't matter who you call." Under Missouri law it is the only thing that matters — a class A misdemeanor, up to a year in jail.

Attacks "insiders" — days after her own closed-door meeting with them.

Stone Canyon Pizza · June 11, 2026

She attacks "insiders." Then she sat down privately with the Independent running against her, Dale Brouk; Independent Kevin Robinson; the Democratic Party chair; and the Democrats' leader in the Missouri House — three ballot labels at one table, working out how to run as one team without telling voters. Then she posted that insiders do things "without public comment." Just like she did.

She's an insider.

Says people who disagree with her think you're "scum of the earth."

Her campaign Facebook page · June 2026

Her page told readers to send them "back to the holes they crawled out of."

Is this really the leader for Platte County?

A party insider running a far-left agenda.

Platte County Democratic Central Committee · At-large member

Endorsed and organized by the party chair. Pushing a new county sales tax and "an equitable tax base" — her words. Her closed-door meeting was with the House Minority Floor Leader, not the people who pay the bills. No documented job since her radio show ended in 2011.

Out of touch with ordinary Platte County residents.

She can barely manage her own taxes, her personal financial disclosures, or her required ethics filings. How is she going to manage the county?

She's not qualified, she's not a leader, and she has no business running Platte County.

She likes taxes. She just doesn't like paying them herself.

Check the sources