KAPLAN: We should seriously be listening to ‘The Apprentice’ contestants who slammed Donald Trump

He just keeps building those walls.

You would think GOP front-runner Donald Trump would have better things to do instead of slamming former contestants on his silly reality show.

How about cooking a campaign based in reality instead of one that stokes anger and hatred?

Not Trump. Never Trump.

Instead he took time out of his day to threaten a bunch of entrepreneurs who once appeared on his reality show "The Apprentice" — simply because they had the gall to publically say how worried they about the idea of a racist like him inhabiting the White House.

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In Donald Trump's version of reality, people really do care what he thinks.

Branding the group "six failing wannabes," the bloviating billionaire railed against the group of five successful black entrepreneurs, and James Sun, who is Asian.

"How quickly they forget," the billionaire bigot thundered in a statement, claiming he "couldn't have been nicer or more respectful" of the group. "They just want to get back into the limelight like they had when they were with Trump. Total dishonesty and disloyalty."

He then threatened to release hours of footage of them "praising me."

Let's get this straight. Years ago, while competing to curry favor with him and win a fictional game show he presided over, they praised him.

They're not stupid. They wanted to win.

Loyalty? With the exception of one, Randal Pinkett, he fired the rest.