The High Court has reserved judgement on whether a Harvard professor of constitutional law should give evidence in a case taken by Denis O'Brien.

The GOP’s leading candidates for the US presidential nomination are the equally despised authoritarian billionaire Donald Trump and religious zealot Ted Cruz, says Bette Browne

A federal judge has rejected a bid by two women to join a high-profile sexual abuse lawsuit and ordered scandalous sex allegations against the Duke of York and a prominent US lawyer removed from the court record.

Check out our guide to the best of tonight's TV.

USA: A five-year-old San Diego boy has outwitted the sharpest minds at Microsoft — he has found a backdoor to the Xbox.

Dan Buckley traces the career thus far of Dublin-born Samantha Power who has just been appointed US ambassador to the UN by President Obama

People who want to have children have been able to buy donated sperm and eggs separately for some time, but the recent practice of selling embryos introduces a range of new ethical and legal issues.

Harvard has issued academic sanctions against about 60 students who were suspended from the elite university in a cheating scandal that involved the final exam in a class on the US Congress.

IN October, US first lady Michelle Obama said she wasn’t thinking about what she might do in the future.

Hollywood-style robots able to shoot people without permission from their human handlers are a real possibility and must be banned before governments start deploying them, Human Rights Watch has warned.

Mitt Romney has moved a step closer to clinching the Republican presidential candidacy after his Super Tuesday victory in the key Ohio primary.

Joseph Kennedy III is to follow in the family tradition and contest the race for a Massachusetts congressional seat in the 4th District.

THE White House released the long form of President Barack Obama’s birth certificate in an extraordinary step in reaction to renewed questions from critics about whether he was born in the United States.

PROPERTY mogul Donald Trump has suggested US President Barack Obama had been a poor student who did not deserve to be admitted to the Ivy League universities he attended.

Property mogul Donald Trump has suggested that US president Barack Obama had been a poor student who did not deserve to be admitted to the Ivy League universities he attended.

President Barack Obama will nominate Solicitor General Elena Kagan to the Supreme Court, a source said.

In his first visit to sub-Saharan Africa since taking office, President Barack Obama was today seeking to lift up the continent of his ancestors – while keeping its emotions in check.

IN his feature article headlined ‘Obama’s first 100 days’ (April 25), Matt Williams tells us the US president’s decision to close Guantanamo Bay “has helped repair some of the damage done to the US reputation overseas”.

Barack Obama’s daughters have already said life in the White House will be “cool” – and they think dad talks too much.

A WATERFORD woman, who once claimed an interest in joining the IRA, has become the first female principal and vice-chancellor of a Scottish “ancient” university.

“Our time has come, our movement is real and change is coming to America,” Barack Obama said as the race for the Democratic Party’s presidential nomination moves on from Super Tuesday.

One of America’s leading sports business experts believes David Beckham’s mega-money deal to join Major League Soccer should be viewed more as a marketing tool than a player contract.

US presidential hopeful Barack Obama’s ancestry has been traced back to a shoemaker in a small Irish village.

SOME people fear that yesterday’s decision by Pfizer to scale back its Irish operations could prove to be as important as the day when the US pharmaceutical giant decided to set up operations back in 1969.

A JUDGE has been appointed chairman of the Abbey Theatre as the century-old institution undergoes a major reform.

Sam Dash, the former chief Watergate counsel who became a household name in the 1970s died today after a lengthy illness, his family said. He was 79.

Hollywood star Reese Witherspoon is set to charm fans tonight at the premiere of her latest movie.