Jeongyoon Han

Robert F. Kennedy Jr. — a former presidential candidate who has a history of spreading conspiracy theories, including about vaccines — is poised to have a key health role in the Trump administration.

Biden called to "lower the temperature" in politics in remarks Sunday.

Haley made her announcement after winning only Vermont on Super Tuesday, making Donald Trump the presumptive GOP nominee.

Haley is the only major GOP candidate left facing former President Donald Trump, after Florida Gov. Ron DeSantis dropped out Sunday.