Tom Llamas said he’s "excited" to take the helm of Nightly News and will live by his tenets of being "tough but fair" while reporting "without fear or favor."

Llamas succeeds Lester Holt as anchor and managing editor of “Nightly News” in a historic move making him the first weekday Latino evening news anchor of an English-language show.

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"I'm a little nervous, but I'm looking forward to the challenge," Llamas told "TODAY" anchor Savannah Guthrie in a sit-down interview.

His new role is the peak of his decades-long career in journalism, that started when he was just 15 years old.

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