'What is this Bart that is Breit?': Cory Booker mocks late conservative media king Andrew Breitbart

While answering questions during a National Press Club event in Washington, D.C., New Jersey Sen. Cory Booker questioned a reporter from Breitbart News about the origin of the publication's name.

"What is this Bart that is Breit? I don't think I've ever heard of it," Booker said sarcastically after a Breitbart reporter introduced herself. The reporter, Penny Starr, responded, "It's a name. It's named after a person, Andrew Breitbart."

"Who was Andrew?" Booker asked.