Government witnesses told the impeachment inquiry last year that Biden was carrying out official U.S. policy
The other nations being considered for new rules were Belarus, Eritrea, Kyrgyzstan, Myanmar, Sudan and Tanzania
The 435-member US House of Representatives last month, where Democrats enjoy a majority, charged Trump with "high crimes and misdemeanours"
Carter, 95, the country's oldest living president, was admitted to Emory University Hospital three weeks after suffering a minor pelvic fracture in a fall at his home in Plains, Georgia
"We've had fun. I think the biggest frustration is the way the media covers me, the way that the media covers perhaps this agenda, and I'm disappointed by it, he said
Kamala Harris ranked fifth in a November poll of Democratic voters' preferred nominee to take on President Donald Trump's re-election bid
Born in Oakland, California, she is the daughter of an Indian mother who migrated to the US from Chennai in 1960 and a Jamaican-American father
President-elect Trump has made clear he intends to boost the economy's growth rate, support science
Two Republican members said that the US should remove obstacles that are limiting defence cooperation with India
President Barack Obama's decision to use drones to kill Taliban leader Mullah Akhtar Mansoor deep inside Pakistan should be a pointer in this regard