Representative Adelita Grijalva, the Arizona Democrat who had waited weeks to be sworn in, provided the 218th and final signature needed to force action.

© Kent Nishimura for The New York Times

Speaker Mike Johnson had refused to swear in Representative-elect Adelita Grijalva, a Democrat of Arizona, claiming he lacked the power to do so.

© Kent Nishimura for The New York Times

As political battles upend college campuses, we asked dozens of students what is on their minds as they plan for the future. Politics was only part of it.

© Jacob Langston for The New York Times