Sen. Lindsey Graham (R-SC) said the drone sightings in U.S. airspace have left him worried about “an attack on the homeland.”

For weeks, people have reported sightings of car-sized drones all over New Jersey, notably in Bedminster, where Gov. Phil Murphy (D-NJ) lives and President-elect Donald Trump’s golf course is located. Since then, drones have been spotted above New York, Pennsylvania, Minnesota, California, and Utah.