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Republicans and democrats don't see eye-to-eye on many issues. But why? National Journal's Brian Resnick has the biological answer.
For more, read National Journal's "How Politics Breaks Our Brains, and How We Can Put Them Back Together."
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Brian Resnick is a former staff correspondent at National Journal and a former producer of The Atlantic's National channel.
Reena Flores is a Video Producer at National Journal.
Mauro Whiteman writes for Government Executive.