Trump vs. Seinfeld — it's on and it's ugly

Good news, everyone. It looks as though Donald Trump won't be giving up the charade of pretending he's a viable presidential candidate anytime soon. In fact, if anything, he's been getting even more into character, lashing out this week at none other than ever-uncontroversial Jerry Seinfeld.

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And yes, since this is Donald we're talking about, the insults flew fast and furious, and, as always, below the belt.

Well, if nothing else, he's at least proving that those debates with Barack Obama would be pretty entertaining. Ridiculous, but entertaining. But as for this Jerry feud, well, in the words of Seinfeld himself, what's the deal with that?

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Simply this: Trump was back on his bully pulpit yesterday, writing a public letter condemning Seinfeld after the funnyman had the nerve (the nerve!) to back out of a fundraiser this fall for his son's charity, the Eric Trump Foundation.

Reading between the lines of Trump's missive, it's clear that Seinfeld pulled out because he (along with the rest of the nation's rational thinkers) was apparently growing uncomfortable with the follicle-challenged reality star's birther rhetoric and continued quest to call for President Obama to produce his birth certificate. (Nevermind that it's already been proven he has one. Why should a little thing like facts and showing respect to the leader of the free world get in the way of a good dogfight?)

"I just learned you canceled a show for my son's charity 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," Trump wrote in the letter, per Page Six, referring to the Sept. 13 event which would benefit St. Jude's Children's Research Hospital.

"We don't care that you broke your commitment, even though the children of St. Jude are very disappointed, and despite the fact that your manager clearly stated you are 'truly a man of his word.' "

All sounding a bit too civil? Don't worry, here it comes ...

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"What I do feel badly about is that I agreed to do, and did, your failed show, 'The Marriage Ref,' even though I thought it was absolutely terrible ... Despite its poor ratings, I didn't cancel on you like you canceled on my son and St. Jude. I only wish I did."

And for the kiss-off, er, sign-off: "You should be ashamed of yourself!"

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Or not. A rep for Seinfeld told the paper that Jerry "feels this kind of demagoguery has no place in public discourse."

And proving just how much classier he actually is than Trump, even before the "Apprentice" boss' letter went public, Seinfeld compensated both the Eric Trump Foundation and St. Jude's for backing out, making a contribution to both organizations.

As for his suddenly vacated slot, it's already been filled. Stepping in is former "Celebrity Apprentice" winner Bret Michaels.