The D Brief: Hegseth, questioned; Ratcliffe, Rubio testifying; Gabbard, uncertain; Navy’s next destroyer; And a bit more.

‘I know what I don’t know,’ SecDef pick says at confirmation hearing. Pete Hegseth conceded that he lacks the experience of previous defense secretaries but said what he has is enough. “It's time to give someone with dust on his boots the helm,” said Hegseth, seemingly forgetting that his would-be predecessors include Army Gen. Lloyd Austin, who received the Silver Star for leading troops under fire, and retired Marine Gen. James Mattis. He said he’d be a