Donald Trump Jr. accused Democrats of not being able to take a joke about former President Joe Biden's stage four prostate cancer.
In a post on X, Trump wondered how former First Lady Jill Biden, a doctor of philosophy, could have missed her husband's cancer and called it a "coverup."
"What I want to know is how did Dr. Jill Biden miss stage five metastatic cancer or is this yet another coverup?" he asked.
The president's son faced backlash online for failing to understand the difference between a PhD and a medical doctor.
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"I sometimes forget that part of the mental disorder of leftism is an inability to understand sarcasm," Trump wrote Monday in his defense. "So for the confused libs out there, I'm well aware that Jill Biden is a fake doctor, not a real one...Unlike the Dems who were calling for her to be Surgeon General in 2020."
Trump ended his missive with a clown face emoji.