Marco Rubio doesn't see a problem with repeating himself ad nauseam

At Saturday's Republican presidential debate, Florida Sen. Marco Rubio attacked President Obama. A lot. To be exact, Rubio attacked Obama four times with some version of, "Let's dispel with this fiction that Barack Obama doesn't know what he's doing. He knows exactly what he's doing."

His performance was widely mocked.

But Sunday on ABC's This Week, Rubio stood by his talking point.

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"It's what I believe and it's what I'm going to continue to say, because it happens to be one of the main reasons why I am running," he said.

In other words, Rubio knows exactly what he's doing.