Obama is set to announce that Mount McKinley, the tallest mountain in North America, will officially revert back to its original name of Denali.

US President Barack Obama is due to unveil what he called "the biggest, most important step we have ever taken" in tackling climate change.

US President Barack Obama to unveil what he called the "biggest, most important step we've ever taken" to fight climate change on Monday.

After a long day of bilateral meetings and news conferences, President of the United States of America, Obama, celebrated the historic trip to his ancestral home with an official state dinner and some dancing, reports abcnews.com.

US President Barack Obama admits that his failure to pass "common sense gun safety laws" in the US is the greatest frustration of his presidency.

Cuba and the United States formally renewed diplomatic ties Monday, as embassies reopened in their respective capitals, a powerful move toward burying decades of enmity between the Cold War foes.

Britain is committed to working with the US to destroy the "caliphate" set up by Islamic State militants in Iraq and Syria, the prime minister says.

Zimbabwean President Robert Mugabe mocks America's decision to legalise gay marriage by vowing to travel to the White House and proposing to Barack Obama.

The first of the funerals for victims of the Charleston church shooting will be held on Thursday in the South Carolina city.

Parts of the White House and a Senate office building evacuated after telephone bomb threats.

The US army has temporarily taken down its website after a hacking attack.

Myanmar's government needs to treat minority Rohingya Muslims as citizens to solve the root cause of the migrant crisis in Southeast Asia, say the United States.

Former Delaware Attorney General Beau Biden, son of US Vice President Joe Biden, dies Saturday after battling brain cancer.

US President Barack Obama breaks a Guinness record by becoming the fastest person to garner one million followers on Twitter, a feat he accomplished in less than five hours with his new account @POTUS, Efe news agency reported.

US President Barack Obama has just launched his own Twitter feed, the White House has confirmed.

United States President Barack Obama drops out from the top 10 influentials list made by the voters – half of whom were from inside the US.

Islamic State (IS) has lost more than a quarter of its territory in Iraq since US-led coalition air strikes began in August, the Pentagon has said.

US President Barack Obama tells Latin American leaders that the days when his country could freely interfere in regional affairs are past.

Iran's president, vows he will abide by the terms of the preliminary nuclear agreement the country signed with six world powers, where Iran will curb nuclear activities in return for relief from sanctions.

Warplanes from a Saudi-led coalition are bombing Yemen for a third night, targeting Shia Houthi rebels as they advance in and around the port of Aden