Barack Obama

United States President Barack Obama adopted a tough tone for his State of the Union speech this week as he sought to rebuild his presidency and prepare to leave a lasting legacy.

US President Barack Obama believes smoking marijuana is a "bad habit" but thinks legal penalties now fall disproportionately on minorities and that states legalizing pot should go ahead with their plans.

United States President Barack Obama is facing a situation that may yet define his presidency.

US President Barack Obama, in a visit to the Federal Emergency Management Agency (FEMA) to spotlight the loss of government services because of the shutdown, has urged Congress to reopen government and raise the debt limit immediately.

President Barack Obama has outlined plans to limit the use of US drone strikes against extremists abroad and has taken steps aimed at breaking a deadlock on closing the Guantanamo Bay military prison.

The FBI have arrested a Mississippi man in connection with letters sent to President Barack Obama and two other officials that are believed to have contained the deadly poison ricin, the US Justice Department says.

A senior pro-Kremlin Russian lawmaker says Washington's publication of a "minimal" list of 18 alleged Russian human rights abusers shows US President Barack Obama does not want to aggravate tensions with Moscow.

President Barack Obama has urged Americans to pressure a reluctant Congress to pass new gun control legislation - one of his top domestic policy priorities - as he traveled to Connecticut, where December's school massacre took place.

US President Barack Obama has urged Americans to reject political "absolutism" and partisan rancour, as he kicked off his second term with an impassioned call for collective action and established a more assertive tone for the challenges he faces over the next four years.

President Barack Obama has taken the official oath for his second term at the White House in a small, private ceremony that set a more subdued tone compared to the historic start of his presidency four years ago.

President Barack Obama has rejected any negotiation with Republicans over the most pressing US fiscal issue, refusing to trade cuts in government spending in exchange for raising the borrowing limit.

US President Barack Obama has nominated former Republican senator Chuck Hagel as his next defence secretary and counterterrorism adviser John Brennan to head the CIA, potentially setting up a Senate confirmation battle on two fronts and establishing a tough tone to start his second term.

Time has tapped US President Barack Obama for its Person of the Year for the second time, citing his historic re-election last month as symbolic of the nation's shifting demographics and the rise of younger, more diverse Americans.

It's hard to know how much impact New York Mayor Michael Bloomberg's comments about climate change after superstorm Sandy had on the US election.

Republican Mitt Romney has erased US President Barack Obama's advantage in the race for the White House and the two candidates are now tied among likely voters, according to a Reuters/Ipsos tracking poll.

US President Barack Obama bounced off a strong debate performance to target women voters with a dig at Republican Mitt Romney's comment that he received "binders full of women" for cabinet jobs when he was governor of Massachusetts.

President Barack Obama has vowed to bring to justice the killers of the US ambassador and three other diplomats in Libya as he sought to avoid election-year fallout from an attack that cast a spotlight on his administration's handling of "Arab Spring" unrest.