U.S. Transportation Secretary Sean Duffy spoke out about SEPTA in a press conference Tuesday addressing major safety and management concerns.

Duffy said the shutdown — which is currently tied for the longest shutdown in U.S. history at 35 days — may force him to close off certain portions of U.S. airspace as soon as next week, which will ground flights, ABC News reports.

Closures of U.S. airspace could be ahead as the U.S. government shutdown drags on, warns U.S. Transportation Secretary Sean Duffy. The shutdown has now tied the record for the longest-lasting and should it persist for another week, “you will see mass chaos, you will see mass flight delays, you will...

Secretary of Transportation Sean Duffy said on Tuesday he was pulling an additional $160 million in federal funding from California

Elon Musk is taking aim at the head of NASA amid news that the U.S. space agency may consider companies other than SpaceX to build lunar landers.

It’ll be a disaster in aviation,” Duffy exclaimed. “October is a slower, air travel month, and we have great weather in October.”

Transportation Secretary Sean Duffy warned that flights across the country could be delayed or even canceled due to the ongoing government shutdown.

Michael Alfonso, the son-in-law of Transportation Secretary Sean Duffy, is running for his father-in-law's old Northwoods congressional seat.