A pair of Missouri Republican Senate candidates are in something of a barnyard fight over an ad that accuses one of them of donating to a farm animal rights group. The candidate, businessman John Brunner, calls the ad an attack on his family because the donation really came from his daughter.

The ad, aired by the campaign of state Treasurer Sarah Steelman, accuses Brunner of giving $10,000 to an "extreme animal rights group that was founded to give farm animals rights."

The spot goes on to say that the group, the Humane Farming Association, worries about the animals' feelings, and asks, "What's next, therapy?"

It then segues without warning to Steelman saying she opposes partial-birth abortion and gay marriage and that she "love[s] to hunt."

WATCH the ad:

Brunner hammered the ad Monday, saying Steelman was taking pot shots at his family. His problem, his campaign said in a statement, is that the donation actually came from his daughter, Ginny Becker.

According to the campaign, the Brunner household's Christmas tradition is to donate to military families through the Brunner family foundation. But some years the kids have been allowed to choose their own charity, and once Becker chose Humane Farming, which says its goals are "to protect farm animals from cruelty and abuse, to protect the public from the misuse of antibiotics, hormones, and other chemicals used on factory farms, and to protect the environment from the impacts of industrialized animal factories."

Brunner's campaign didn't quibble over the Steelman camp's description of the group, but did release a statement from Becker owning up to the donation. "My charitable donation has nothing to do with a political race, and in my opinion, there are more significant issues to discuss today,” Becker said.

Brunner's campaign wants Steelman to pull the ad and apologize.

“The latest ad from Sarah Steelman is a despicable attack on John Brunner’s family and is completely outside the bounds of a political campaign,” said Brunner spokesman Todd Abrajano. “Sarah Steelman should be ashamed of herself for putting this ad on the air and I call on her to apologize to John Brunner’s family immediately.”

Steelman's campaign on Monday showed no signs of doing so.

UPDATE: 4:15 p.m. -- The Steelman campaign stood by its charge that Brunner and his wife tried to aid farm animals, sending along the Brunner Foundation's 990 report to the IRS from 2008, when the donation was made. The report shows that Brunner and his wife are the only trustees, and that they gave away $359,000 in 2008. Much went to educational, religious and veterans' institutions, but the Brunners did appear to care about animal welfare, also donating to the Humane Society of Missouri and the St. Louis Zoo.

Loading Slideshow...
  • Motorcycle To Change

    Candidate: Jon Huntsman Race: 2012 Republican Presidential Primary

  • A Bump In The Road

    Candidate: Mitt Romney Race: 2012 Republican Presidential Primary

  • Rock Into Lake Is Clearly A Metaphor For...

    Candidate: Mike Gravel Race: 2008 Democratic presidential primary Outcome: Dropped out of Democratic primary and switched to Libertarian Party on March 25, 2008

  • Coroners Taking Organs!

    Candidate: Dwight McKenna Race: 2010 New Orleans Parish coroner Outcome: Lost to nine-term incumbent Frank Minyard

  • From Bad To Bizarre

    Candidate: Steve Chabot Race: 2006 Ohio First Congressional District, general election Outcome: Incumbent Congressman Chabot defeated challenger John Cranley

  • 'Traditional American Values'

    Candidate: Vernon Robinson Race: 2004 North Carolina 5th Congressional District, Republican primary Outcome: Lost to current Congresswoman Virginia Foxx in primary

  • The Bloopers Were Better

    Candidate: Adriane Reesey Race: 2008 race for supervisor of elections for Broward County, Florida Outcome: Lost to Brenda Snipes

  • Trickle Down Economics

    Candidate: Jim Slattery Race: 2008 Kansas Senate race Outcome: Incumbent Sen. Pat Roberts defeated Jim Slattery

  • Harold, Call Me!

    Candidate: Bob Corker Race: 2006 Tennessee Senate race Outcome: Bob Corker defeated Harold Ford, Jr.

  • Here He Comes To Save The Day

    Candidate: Charlie Wheelen Race: 2009 Illinois 5th Congressional District, Democratic primary (special election) Outcome: Lost primary to current Rep. Michael Quigley

  • Maybe She Thought She Was Running For Dog Catcher?

    Candidate: Diane Benson Race: 2008 Alaska At-Large District, Democratic primary Outcome: Lost in primary to Ethan Berkowitz

  • Listen Up!

    Candidate: Dale Peterson Race: 2010 Alabama Agriculture Commission, Republican primary Outcome: Finished 3rd in GOP primary

  • 'I'm Not A Witch'

    Candidate: Christine O'Donnell Race: 2008 Delaware Senate race Outcome: Lost to Chris Coons

  • Luxurious Prison Spas

    Candidate: Sue Lowden Race: 2008 Republican primary in Nevada Senate race Outcome: Lost to Sharron Angle

  • 'Demon Sheep'

    Candidate: Carly Fiorina Race: 2010 California Senate Republican primary Outcome: Fiorina defeated Tom Campbell in the GOP primary but lost in the general election to incumbent Democratic Sen. Barbara Boxer.

  • Flip-Flopper

    Candidate: Bradley Byrne Race: 2010 Alabama gubernatorial Republican primary Outcome: Lost in primary to Robert Brentley

  • Advice: Don't Tape Yourself With No Shirt On

    Candidate: Lee Fisher Race: 2010 Ohio Senate race Outcome: Lost to Rob Portman

  • Gather Your Armies!

    Candidate: Rick Barber Race: 2010 Alabama 2nd Congressional District Outcome: Lost primary to Martha Roby

  • Dance Party, District 19!

    Candidate: Mike Weinstein Race: 2010 Florida House of Representatives, District 19 Outcome: Weinstein reelected to second term

  • Dirty Diaper

    Candidate: Bill McCollum Race: 2010 Florida gubernatorial Republican primary Outcome: Lost primary to Rick Scott

  • A Kick In The Groin

    Candidate: Peter Schiff Race: 2010 Connecticut Senate Republican primary Outcome: Lost primary to Linda McMahon

  • Welcome To Nevada

    Candidate: Sharron Angle Race: 2010 Nevada Senate general election Outcome: Lost to Harry Reid

  • Daisy

    Candidate: Lyndon B. Johnson Race: 1964 presidential election Outcome: Johnson defeated Republican challenger Barry Goldwater

Also on HuffPost: