Like his father Donald, Eric Trump isn’t totally convinced President Barack Obama was born in the United States.

It’s precisely for this reason that comedian Jerry Seinfeld reportedly skipped out on Eric Trump’s St. Jude Children’s Research Hospital benefit. The New York Post reported Thursday that Seinfeld bailed on Eric Trump because The Donald has been promoting the possibility that President Obama was not born in the United States. Donald Trump promptly sent a scathing letter to Seinfeld, and son Eric appeared on Fox 5’s “Good Day New York” to share his perspective on the cancellation.

“It is disappointing,” Eric Trump told Fox, noting, “Politics should have nothing to do with charity.”

Papa Trump, who is considering a run for president, has repeatedly suggested that the birther conspiracy may be true, and this apparently has made him unpopular with Seinfeld. Eric Trump, who likely experienced the negative effects of his father’s words, also wonders where Obama was born.

Asked if the president was born in America, Eric Trump said, “Truthfully, I have no idea. I think there is real question. I think my father has pointed out [that] real question. I think, my father just wants answers…He wants definitive answers and I think that’s what he expects from the president.”

Eric Trump reiterated that it was “disappointing” to learn that his dad’s political question inspired Seinfeld to back out of his charity commitment.

“It’s disappointing, I mean, I raise millions of dollars to help kids who are dying of terminal illnesses at St. Judes, which is an incredible facility,” Trump said. “Jerry’s been locked up for many, many months now…and I get a call yesterday that he doesn’t like my father’s political views, so he’s taking it out on the kids…Again a disappointing approach [on Seinfeld’s part].”

Trump Jr. had raving reviews of his own dad, who he believes would do “well” in the presidential election cycle.

“The man’s got incredible back bone and quite frankly, that’s what this country needs…I really think he’ll do well in this race. I think that is what this country needs right now,” Eric Trump said. “My father always had tremendous respect for Jerry; there never was bad blood. When I got a call from him and his manager yesterday ranting and raving about how they no longer wanted to be affiliated with the event, I was certainly very shocked.”