Vice President Kamala D. Harris presided over the certification of her own loss without disputing it, and Democrats made no move to challenge the results.

© Haiyun Jiang for The New York Times

A joint session of the House and Senate is set to convene at 1 p.m. to perform a ritual that was once considered ceremonial and uneventful.

© Kent Nishimura for The New York Times

There was a first-day-of-school energy on Capitol Hill as members of Congress took their oaths and Speaker Mike Johnson fought for his job.

© Eric Lee/The New York Times