Leading Republicans united Tuesday in an extraordinary denunciation of Donald Trump's attacks on a federal judge, with House Speaker Paul Ryan calling them the "textbook definition of a racist comment." Yet Ryan stood by his endorsement of the presumptive presidential nominee.

Roque "Rocky" De La Fuente should probably be a Republican. The walls in the lobby of his San Diego, California, office are dominated by photos in which he's smiling alongside Republicans - Presidents Ronald Reagan, George HW Bush and George W Bush, and 2008 nominee John McCain.

The federal judge who's hearing a Trump University lawsuit is "a hater of Donald Trump" and ought to be removed from the case. So says Donald Trump, in just one of the recent comments by the presumptive Republican presidential nominee that have legal experts worrying about his commitment to an independent judiciary and his views on presidential powers.

US President Barack Obama briefly beatboxed before an impromptu performance by Vietnamese rapper Suboi

The Secret Service has shot an armed man outside the White House, according to US officials.

A bill that would allow the families of 9/11 victims to sue the Saudi government has passed a key hurdle in the US Senate.

US Republican presidential candidate Donald Trump says he is willing to meet the North Korean leader to discuss Pyongyang's nuclear programme.

Around 12,000 people have been urged to leave Canada's oil sands camps near the fire-hit town of Fort McMurray as a resurgent wildfire heads towards them.

Some Americans are threatening to leave the US for Canada if Donald Trump becomes President, but will they actually move?

Oil sands firms in Canada's Alberta province are slowly restarting production after a massive wildfire forced a week-long shut down.

Bernie Sanders has won the West Virginia primary in the Democratic race for the presidential nomination, US media project.

Officials in Canada are saying the huge wildfire devastating the oil town of Fort McMurray in Alberta could double in size over the next 24 hours.

Ohio Governor John Kasich has dropped out of the presidential race after struggling to gain traction against Republican front-runner Donald Trump, US media report.

A group of hackers linked to Islamic State has posted online a list of thousands of New York residents and urged followers of the militant group to target them, according to a source with knowledge of the matter.

US President Barack Obama urges young people to "reject pessimism and cynicism" and "know that progress is possible and problems can be solved".

Barack Obama urges the UK to stick with the EU, as he starts his final trip to Britain as US president by having lunch with the Queen.

Anti-slavery activist Harriet Tubman is to be the first woman to appear on a US banknote for more than a century.

Trust in the news media is being eroded by perceptions of inaccuracy and bias, fueled in part by Americans' skepticism about what they read on social media.

The United States has said the government of Bangladesh took 'limited measures' to investigate and prosecute cases of abuse and killing by security forces. The US, in its 2015 Country Reports on Human Rights Practices, claimed authorities failed at times to maintain effective control over security forces.

A man who had to be rescued when he climbed a California cliff to propose to his girlfriend via cellphone video later was acting erratically and was found to be high on methamphetamine, authorities say.