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Neil deGrasse Tyson: 'I don't care about politicians, I care about who voted for them'

Astrophysicist Neil deGrasse Tyson tells Sunday TODAY's Willie Geist that he doesn't care if a Democrat or Republican is elected to an office, as long as the people who voted for them are informed about issues like climate change. "You can't have a functioning democracy with an uninformed electorate," he says.

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