He's known for being quite the brainiac, but according to critics, trivia champion Ken Jennings seems to have left his smarts at the door.

After TMZ reported Barron Trump screamed thinking Kathy Griffin's photoshoot with a bloody replica of President Trump's head was real, Jennings tweeted, "Barron Trump saw a very long necktie on a heap of expired deli meat in a dumpster. He thought it was his dad & his little heart is breaking."

Barron Trump saw a very long necktie on a heap of expired deli meat in a dumpster. He thought it was his dad & his little heart is breaking — Ken Jennings (@KenJennings) May 31, 2017

The mocking message didn't go over well with many users.

RELATED: Reactions to Kathy Griffin's photo



15 PHOTOS Reaction to Kathy Griffin's photo with Trump's severed head See Gallery Reaction to Kathy Griffin's photo with Trump's severed head This is vile and wrong. It is never funny to joke about killing a president. https://t.co/zIiuKoMyFw Disgusting but not surprising. This is the left today. They consider this acceptable. Imagine a conservative did th… https://t.co/vs6FeEGyTP Our politics have become too base, too low, & too vulgar, but Kathy Griffin's post descends into an even more repugnant & vile territory. For the record, I am appalled by the photo shoot Kathy Griffin took part in. It is clearly disgusting and completely inappropriate. No one should be shocked at the sick audacity of sick characters. Kathy is a hurting individual. She needs help.... https://t.co/RHpk02ojbJ It wasn't right when peoplel hung lynched Obama effigies, just as what Kathy Griffin did isn't right now. For those asking, I said on air that I thought the beheading imagery by Griffin about the president was disgusting and inappropriate. .@kathygriffin I'm sorry but that is totally inappropriate and so very offensive. And I have to believe you're smart enough to know better. Nope. Too much. By a very long distance, way too much. https://t.co/I9977nKEAP This Kathy Griffin thing is so upsetting and disgusting. Jesus--what is wrong with people today? Have we lost all our humanity? I'm not looking forward to be asked as a comedian if I defend the Kathy Griffin picture... it was clearly not meant to be funny. #No I'm all for artistic and comedic expression, but I just saw the violent Trump imagery in #KathyGriffin's photo and I find it horrible. Kathy Griffin is the embodiment of the average American liberal A psychotic lunatic who has more in common with I… https://t.co/arCYwt8pAF I hope people realize the new precedent Kathy Griffin has set, this is madness. Call CNN advertisers & everyone she… https://t.co/XC9zC8IdLP Kathy Griffin is the new face of the Democratic party and the newest member of ISIS. The Secret Service should inve… https://t.co/RPGSRRF519 Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

"No, please don't. He's a child," pleads one user, but the feisty Jeopardy winner stuck to his guns.

SEE ALSO: Melania Trump fires back over Kathy Griffin's 'very disturbing' Trump beheading photo

NBC reporter Frank Thorp, referencing the show which made Jennings famous tweeted, I'll take "'People who never learn' for $500, Alex..."

I'll take "'People who never learn' for $500, Alex..." https://t.co/YUm582VPBL — Frank Thorp V (@frankthorp) May 31, 2017

Even Donald Trump Jr, which earlier had tweeted he would have a hard time explaining the photo to his two children wrote, "It takes a real man to pick on an 11-year-old. Yet another low from the left, but they will rationalize this away with their usual excuses."

It takes a real man to pick on an 11 year old. Yet another low from the left, but they will rationalize this away with their usual excuses. https://t.co/JDF3VsVEJ1 — Donald Trump Jr. (@DonaldJTrumpJr) May 31, 2017

Father of two Jennings, responded, "I will kill as many white rhinos as it takes to prove my masculinity to Donald Trump Jr."

Jennings brushed all the backlash aside and eventually justified his original tweet, saying he wasn't mocking Barron, he just felt that he was being used as political cover.

SEE ALSO: Barron Trump's reaction Kathy Griffin's image of Trump's severed head

Meanwhile, Barron's father, President Trump has said his son is having a hard time coping, and mom Melania Trump released a statement questioning the mental health of Kathy Griffin.

Griffin has since apologized for the photo, saying she crossed the line.

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