Pennsylvania Senator John Fetterman has been receiving inpatient treatment for clinical depression over the past two months and may return to Congress in April.

The investigative grand jury hearing evidence about Donald Trump's role in a hush money payment has been given three weeks off, news organisations report.

Senior Democrats look to ensure US weapons sales to foreign customers don't end up contributing to or enabling human rights abuses abroad with new legislation.

The decision makes the first naloxone-based nasal-spray drug available without prescription, making the life-saving medication more widely accessible.