Maryland's Democrat Senate frontrunner Rep. David Trone uttered a racial slur during a House meeting, but claimed he was just trying to say 'bugaboo'. 

Trone, 68, was talking about Democrat tax policies with Shalanda Young, who is director of the Office of Budget and Management, when he used the offensive term.

The congressman said to Young, who is a black woman: 'So this Republican ji***** that it's the tax rate that’s stopping business investment, it’s just completely faulty by people who have never run a business.'