Republican presidential candidate Dr. Ben Carson appeared on "The Kelly File" tonight and reacted to a Daily Beast article, titled "GOP’s 2016 Festival of Hate: It’s Already the Most Racist Presidential Campaign Ever."

Carson, who recently caused a controversy when he said that he wouldn't advocate electing a Muslim as president of the United States, said that leftists often fall back upon accusations of racism.

"When they can't find anything else to talk about, they drop back to racism," Carson said. "That's their standard defense. And it's so silly when you stop and think about it."

He said it doesn't matter what a person's race or religion is, as long as they're able to accept American principles and values.

Watch more from the "Kelly File" interview above.

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