Story highlights Ben Carson says his rivals aren't his biggest threat in the presidential election -- it's uneducated voters

"I see the threat being the fact that people sometimes are not well educated," Carson said

Washington (CNN) Ben Carson said his Republican rivals aren't his biggest threat in the presidential election -- it's uneducated voters.

The retired neurosurgeon and Republican candidate for president was asked by CNN's Wolf Blitzer on "Wolf" Wednesday whether he sees front-runner Donald Trump or Texas Sen. Ted Cruz as a bigger threat to him in the GOP primary, and Carson said neither.

"I see the threat being the fact that people sometimes are not well educated," Carson said.

He cited "man-on-the-street" style interviews, where individuals are asked questions about basic general knowledge topics.

"They don't have a clue what you're talking about, and yet these are people who vote," Carson said.

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