Hot off his feud with Bill Cosby, Donald Trump is taking on another NBC comedy icon: The Donald is furious at Jerry Seinfeld for canceling an appearance for his son's foundation.
Seinfeld canceled on the Sept. 13 event benefit for the St. Jude Children's Research Hospital because he disagrees with Trump questioning President Obama's citizenship, his reps told to the New York Post.
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Trump, in turn, fired of a letter to the "Seinfeld" star criticizng him and Seinfeld's "The Marriage Ref."
"I just learned you canceled a show for my son's charity," Trump wrote, according to the Post, "because of the fact that I am being very aggressive with respect to President Obama, who is doing an absolutely terrible job as our leader."