In polls of swing state voters, 14 percent of those who said they voted for President Biden in 2020 said they weren’t backing him now.

Preliminary numbers show a nearly 4 percent decrease in deaths from opioids, largely fentanyl, but a rise in deaths from meth and cocaine.

Kennedy draws disproportionately from voters who usually back Democrats but have defected to Trump.

A new set of Times/Siena polls, including one with The Philadelphia Inquirer, reveal an erosion of support for the president among young and nonwhite voters upset about the economy and Gaza.

The president used the Oct. 7 Hamas attack on Israel to underscore the threat that Jewish people still face after the Holocaust.

People with two copies of the gene variant APOE4 are almost certain to get Alzheimer’s, say researchers, who proposed a framework under which such patients could be diagnosed years before symptoms.

Recent studies cast doubt on whether large-scale mental health interventions are making young people better. Some even suggest they can have a negative effect.

New research finds that the death rate among Black youths soared by 37 percent, and among Native American youths by 22 percent, between 2014 and 2020, compared with less than 5 percent for white youths.

Categorizing previous third-party bids helps us understand where he fits in and where he might wind up.

Can you sort 8 historical events?