Shannon Airport has appointed Matthew Thomas of Canadian group Vantage as i

Barry O’Halloran Matthew Thomas of Canadian aiport operator Vantage will take over as chief executive of State-owned Shannon Group next month. Briti(...)

Alex Lowe reaches up to feel which tool will hold his weight, Great Sail Peak, Baffin Island, Nunavut, Northwest Territories, Canada. Photograph: Gordon Wiltsie/National Geographic/Getty Images

He was regarded as one of the greatest mountaineers of the modern era, lost in an ice avalanche on Shishapangma, in Tibet, 16 years ago. Now the body (...)

 New York could also inject a new momentum behind the leader in the Republican race, businessman Donald Trump, in his bid to be the party’s nominee. He has 744 delegates to 559 for Texas senator Ted Cruz. Photograph: Christopher Lee/The New York Times

The second-biggest prize in the Democratic presidential election – and the fourth-biggest in the Republican race – will be up for grabs when primary v(...)

Paul O’Brien: Growth Hacker and start-up consultant

“Tech hub” is a meaningless term. As the sector grows in size and influence, almost every city in the US has attached the label to its list of local a(...)

Ted Cruz: trying to stop Donald Trump getting the 1,237 delegates needed to secure the Republican nomination in July. Photograph: Brendan Bannon/The New York Times

Republican US presidential hopeful Ted Cruz won all 14 delegates at stake on Saturday in Wyoming. Mr Cruz is trying to prevent Mr Trump from obtaini(...)

US Republican presidential candidate Donald Trump:  He leads in state primaries and caucuses   so far,  but the odds of the businessman reaching the majority of 1,237 pledged delegates to clinch the nomination in the first ballot at the national convention in July have declined. Photograph: Carlo Allegri/Reuters

Republican presidential frontrunner Donald Trump has raised more hackles about the party’s nominating process, saying that the party’s leaders do not(...)

Republican US presidential candidate Donald Trump greets supporters after a campaign rally in Albany, New York: the businessman told supporters the electoral system is “rigged, disgusting and dirty”. Photograph: Mike Segar/Reuters

Thousands queued in the cold rain in Albany, the state capital of New York, hoping to make it into the Bernie Sanders rally in the Washington Avenue A(...)

A woman reacts as US Republican presidential candidate Donald Trump walks past following a campaign event   in Rochester, New York. Photograph: Carlo Allegri/Reuters

Billionaire Donald Trump grabbed headlines again yesterday by rubbishing the “rigged” way in which Republicans pick a presidential nominee and critici(...)

Donald Trump: not since Barry Goldwater has the Republican establishment so railed against a candidate as it has against Trump. Photograph: Shannon Stapleton/Reuters

“I warned that the Republican Party is in real danger of subversion by a radical, well-financed, highly disciplined minority,” the Republican governor(...)

Republican presidential candidate Donald Trump speaks to guests during a campaign rally at the Radisson Paper Valley Hotel in Appleton, Wisconsin. The state’s  voters go to the polls for the Republican  primary on Tuesday. Photograph: Scott Olson/Getty Images

This week was the first since the inaugural qualifying round of the US presidential election in Iowa on February 1st that there hasn’t been primary or(...)