LAS VEGAS (KSNV) — U.S. Sen. Jacky Rosen, D-Nevada, accused one of her Senate colleagues of stalking her staff after a comment regarding car information.

Rosen was taking part in a Senate Commerce, Science and Transportation Committee hearing for several transportation nominees on Wednesday.

During questioning of one nominee, Ryan McCormack, regarding vehicle safety features, U.S. Sen. Bernie Moreno, R-Ohio, said he collected the vehicle identification numbers, or VIN, from his Democratic colleagues' cars.

"Would it surprise you that I got the VIN numbers of every one of my Democrat colleagues' vehicles and found that none of them bought any of the additional safety technologies on their cars?" Moreno asked.

"I did not know that, Senator," McCormack responded.

"So, when you are actually shopping for a car with your own money, you don't buy the technology, but we're sitting here saying that this should be mandated for everybody else's cars," Moreno said.

Several minutes later in the hearing, Rosen asked for unanimous consent to determine how Moreno obtained those VINs, calling it an overreach into senators' privacies.

"VIN numbers are displayed on the windshield of the car," Moreno responded. A car VIN is usually displayed either on the driver's side dashboard or on a sticker placed inside the driver's side door.

Rosen questioned if Moreno had inspected her car in Las Vegas, to which Moreno asked if she rides in a car while in Washington D.C.

"That is my staff's car," Rosen answered.

"So you're not concerned about your staff's safety?" Moreno asked.

"I am not going to get back and forth with you," Rosen responded. "I am just telling you that I'm asking unanimous consent that for you to submit to this committee what VIN numbers you have, whose privacy you violated, and what you plan to do with it."

Rosen then continued with questioning the nominees. After her questioning, Moreno returned to the VIN argument, calling it "classic Washington D.C.," at which point Rosen interjected.

"I object to you stalking my car and my staff to find the VIN numbers to present to this committee," she said. "What are you doing there? What are you going to do with them? It's an invasion of our privacy."

Rosen added, "That seems a little creepy."

The two senators then began arguing over the ongoing federal government shutdown and which party was to blame.