Editor's note: The video in the player above is from a previous report on delayed and canceled flights caused by the government shutdown.

Transportation Secretary Sean Duffy warned Tuesday the United States might be forced to close some airspace if air traffic controllers miss a second full paycheck next week and the government shutdown continues.

Duffy, who blamed the shutdown on Democrats at a news conference, explained many controllers said they can afford to miss one paycheck - but "none" can manage missing two.

"So if you bring us to a week from today, Democrats, you will see mass chaos," he said. "You will see mass flight delays. You'll see mass cancelations, and you may see us close certain parts of the airspace because we just cannot manage it because we don't have the air traff

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