The couple escalated their battle with Representative James R. Comer, the chairman of the Oversight Committee, who said he would move to hold them in contempt of Congress.

Unexpected vacancies have whittled the G.O.P.’s edge to just a couple of votes, leaving Speaker Mike Johnson with almost no margin for leading the chamber.

In a new book, C. Thi Nguyen looks to his personal passions — from video games to yo-yoing — to illuminate the downside of our increasingly gamified world.

Experienced Antarctica guides tell Raymond Zhong, our climate reporter, how they set up camp on the Thwaites Glacier so scientists can measure how fast it’s melting. The biggest safety concern? Crevasses.