Whatever happened to Tucker Carlson? This reporter asked him.

Lyz Lenz wrote "The Mystery of Tucker Carlson" for the Columbia Journalism Review. She says Carlson's journey from an acclaimed magazine writer to an angry cable news host reveals something about race, class, and economic status in America. Lenz and Brian Stelter discuss Carlson's anti-immigration segments, his "censorship" crusades and his embrace of "change the subject conservatism."

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