Sen. Chuck Schumer called a flight attendant an obscenity aboard a recent U.S. Airways flight, Politico.com reported.

The New York Democrat muttered the word "bitch" after a female flight attendant asked him to turn his cell phone off before takeoff, a House GOP aide who witnessed the incident told the Web site. 

Schumer reportedly was seated next to Sen. Kirsten Gillibrand, D-N.Y.

"The senator made an off-the-cuff comment under his breath that he shouldn’t have made, and he regrets it," Schumer spokesman Brian Fallon reportedly told Politico.com.  

Click here to read more from Politico.com.