That's no moon

It's his ego. [Link]

“When President Barack Obama stepped off the stage in Denver last week the 60 million Americans watching the debate against Mitt Romney already knew it had been a disaster for him,” Toby Harnden writes in the London Daily Mail. “But what nobody knew, until now, was that Obama believed he had actually won.”
And note this, later in the same article:

Obama also decided to take a break to visit the Hoover Dam. ‘Its spectacular, and I’ve never seen it before,’ he told reporters during the visit, which came about because an aide had mentioned the dam was nearby. I said, ‘Well, we’ve got to go check it out”.’

He always thinks he is the smartest person in the room. [Link]

First, some context. From @jeffemmanuel, an old quote from Obama:

“I think that I’m a better speechwriter than my speechwriters. I know more about policies on any particular issue than my policy directors. And I’ll tell you right now that I’m gonna think I’m a better political director than my political director.”

Next, from @rdbrewer4, his favorite psychological disorder, the Dunning-Kruger effect:

The Dunning–Kruger effect is a cognitive bias in which unskilled individuals suffer from illusory superiority, mistakenly rating their ability much higher than average. This bias is attributed to a metacognitive inability of the unskilled to recognize their mistakes.[1] Actual competence may weaken self-confidence, as competent individuals may falsely assume that others have an equivalent understanding. As Kruger and Dunning conclude, "the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others"

Or, in simpler terms: The competent understand their weaknesses and can also recognize the superiority of others (in areas where they are superior). Competent people actually rate themselves as less competent than they actually are.
On the other hand, incompetents tend to rate their competency much, much higher than reality. Because they're so incompetent they don't even know what competence, let alone expertise, looks like. And they can't even spot it when it's right in front of their faces, demonstrated by someone else.