'We're so happy': Tribal leaders praise Biden making sacred lands a national monument

Pres. Biden has made nearly 1 million acres of land close to the Grand Canyon - land sacred to multiple Native American tribes - into America's newest national monument. Carletta Tilousi, an activist for environmental justice and member of the Havasupai Tribe who's spent decades on this fight, joins MSNBC's Jonathan Capehart.

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