WATCH: Trump Trashes Ben Carson's Claim That the 'Pyramids Were Grain Silos'

On a phone call into NBC's 'Meet the Press' Donald Trump ripped into Ben Carson, saying he 'will have to explain a lot of things away.'

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Republican presidential candidate Donald Trump.Credit: AP

Donald Trump: The pyramids. You know, a pyramid is a solid structure essentially, with a little area for the Pharaoh. And you don't put grain in a pyramid because it's all solid. You didn't have large structural beams in those days.