Everyone knows elite competition is as much a mental test as a physical one and it has been the basis for a sustained campaign by chess authorities for inclusion in the Olympics.  Photograph: Sebastian Reuter/Getty Images for World Chess by Agon Limited

It’s conker season so here’s an old chestnut – is chess a sport? And if it isn’t, how come darts gets under the sporting umbrella? Sure it’s a test of(...)

Former president Jimmy Carter and Rosalynn Carter at home:  “[Barack Obama] made some very wonderful statements, in my opinion, when he first got in office, and then he reneged on that.” Photograph: Dustin Chambers

Most people would run away screaming at the thought of working for a boss who humiliates subordinates in public, throttles them in private, demands co(...)

US president John F Kennedy waves from his car in a motorcade in Dallas in November 1963. File photograph: AP Photo/Jim Altgens

US president Donald Trump said on Saturday that, “subject to receipt of further information”, he planned to allow the opening of long-secret files on (...)

Steve Bannon has claimed George Bush presided over a ‘destructive’ presidency. Photograph: Getty

US president Donald Trump’s former chief strategist Steve Bannon has depicted ex-president George W Bush as bumbling and inept, faulting him for presi(...)

President Donald Trump and Senate majority leader Mitch McConnell. Photograph: Tom Brenner/The New York Times

Ireland’s corporate tax regime was the unlikely focus of “fake news” allegations this week after US president Donald Trump claimed Ireland was reducin(...)

Glanbia managing director Siobhán Talbot, IAG chief executive Willie Walsh and Ardagh Group chairman Paul Coulson at the launch of Boston College’s Ireland Business Council. Photograph: Bryan Brophy

One advantage of being a nation of emigrants is that Ireland has a ready-made, extensive business diaspora, a network in every developed nation on Ea(...)

A man tries out TUI’s  “Destination U” prototype, a facial coding pod, developed by Realeyes, which uses emotional measurement technology to guide holidaymakers when selecting a travel destination. Photograph: Matt Crossick/PA

Image of the week: See this face The advertising world loves a spot of neuromarketing, so the only surprising thing about this “Destination U” protot(...)

White House chief of staff John Kelly said an investigation was under way into the circumstances surrounding the ambush that killed four US troops in Niger earlier this month. Photograph: Andrew Harrer/Bloomberg

White House chief of staff John Kelly defended US president Donald Trump’s handling of a phone call with the widow of a fallen US soldier as the four-(...)

US president Donald Trump and White House chief of staff John Kelly. Mr Kelly’s son, like the retired general a US marine, died in Afghanistan in 2010. Photograph: Andrew Harrer/EPA

The mother of a US soldier killed in an ambush in Niger said on Wednesday that President Donald Trump disrespected her family during a call with the m(...)

Minister of State for finance Michael D’Arcy has said: ‘The 12.5% tax rate is, and will remain, a core part of our offering.’ Photograph: Dara Mac Dónaill

US president Donald Trump has renewed his pledge to clamp down on countries that are unfairly competing with America on tax, a day after he claimed th(...)