Representative María Elvira Salazar, a three-term representative from Miami, won re-election by 20 percentage points in 2024. Her ad suggests worry among some Republicans about their standing with Hispanic voters.

“Alignment” is the science of teaching A.I. to do what is in line with human preferences, ethics and judgment. But, at times, the systems have gone rogue.

A.I. is already a powerful tool for scientific discovery. Now, some biomedical researchers are teaching it to do even more.