PRESIDENT OBAMA IS BLACK AND IS HIS SUPERIOR:

President Barack Obama and President-elect Donald Trump once sat together in the Oval Office. "I was immediately struck by Trump's body language," wrote journalist Jon Karl in his memoir Front Row at The Trump Show. "I was seeing a side of him I had never seen. He seemed, believe it or not, humbled."

It was November 2016 and, just for once, Trump was not in charge of the room, Karl recalls. Obama was still president, directing the action and setting the tone. His successor "seemed a little dazed" and "a little freaked out". What the two men discussed in their meeting that day, only they know.

But what became clear in the next three and a half years is that Obama remains something of an obsession for Trump; the subject of a political and personal inferiority complex.

Observers point to a mix of anti-intellectualism, racism, vengeance and primitive envy over everything from Obama's Nobel peace prize to the scale of his inauguration crowd and social media following.

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