As the U.S. Senate held a rare session Sunday to work on a potential deal to end the government shutdown, President Donald Trump's administration demanded that states “undo” full SNAP benefits paid out under judges' orders last week, now that the U.S. Supreme Court has stayed those rulings, marking the latest swing in a seesaw legal battle over the anti-hunger program used by 42 million Americans.

Duffy: ‘You're going to see air travel be reduced to a trickle’ if shutdown doesn’t end

Transportation Secretary Sean Duffy joins CNN’s Jake Tapper to discuss worsening travel disruptions due to the government shutdown.

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