Trump's new obsession with attacking Amazon is so unhinged, even Fox is calling it out for the nonsense it is.

Even Fox News is having a hard time understanding what Trump is talking about with his attacks on Amazon.

Fox News anchor Shepard Smith discussed the topic with financial analyst Hitha Herzog and Fox Business reporter Geri Willis on a panel, and all agreed Trump’s complaints make no sense.

Trump has been fussing about Amazon by arguing that the company is somehow taking advantage of the U.S. Postal Service.

He claimed that Amazon is “costing the United States Post Office massive amounts of money for being their Delivery Boy” and that “many billions of dollars” are being “bourne (sic)” by taxpayers in service of Amazon.

Trump has repeatedly lashed out at Amazon in recent days because of his frustration with the Washington Post’s coverage of his flailing presidency. Jeff Bezos, founder and CEO of Amazon, also owns the Post.

On Fox, Smith said, “It is somewhat hard to imagine that the president doesn’t realize that tax dollars do not go to the post office.”

Herzog replied that he can “just go on Google” to get the pertinent information. And in fact the official Post Office website says, “The Postal Service receives NO tax dollars for operating expenses and relies on the sale of postage, products and services to fund its operations.”

Smith explained to viewers that Trump’s assertion is completely without merit.

“It’s not like someone has said ‘We’re losing tax dollars.’ No one’s ever said this. That’s not a thing.”

“There is no association with the USPS and tax dollars,” Herzog added.

Trump’s frustrations and inability to respond to the Post’s journalism like a normal elected official has resulted in his absurd attacks on Amazon.

The use of his bully pulpit to attack and even threaten a private business based solely on his personal political agenda has cost the company billions in stock market value.

Calling Amazon out for business practices that are harmful to the public or environment would be a worthwhile use of his time and world attention, but Trump is just trying to settle a political score.

But his chosen argument — invoking the post office — is disconnected from reality.

Fox News typically bends over backward to accommodate Trump’s rambling and validate his concerns, but at least on Smith’s program, that detachment from reality is being challenged with facts.

“That’s not a thing” sums up Trump and his relationship to the world in so many ways.