Maryland governor Martin O’Malley (left) with president Barack Obama. Mr O’Malley has cancelled death sentences for four prisoners. Photograph: Mandel Ngan/AFP/Getty Images.

A US governor has cancelled the death sentences of the last four inmates awaiting execution, almost two years after the state became the 18th to do a(...)

Former US president George W Bush speaks at the launch his new book, “41: A Portrait of My Father”, at the George Bush Presidential Library Center in College Station, Texas. Photograph: Mike Stone/Reuters

George W Bush, the 43rd president, unveiling his new biography of his father, 41st president, George HW Bush – a book he describes as “a love story” –(...)

Maryland governor Martin O’Malley: unable to ensure a continued Democratic presence in the State House in Annapolis. Photograph: Jonathan Ernst/Reuters

Brendan Boyle will become the only member of Congress with an Irish-born parent, after being elected to the House of Representatives in Tuesday’s US (...)

US president Barack Obama meets his national security and public health teams in the Roosevelt Room at the White House yesterday. Photograph:  Mark Wilson/Getty Images

1. The voters are mad as hell...but Republicans are less crazy than before. Tuesday’s heavy losses by Democrats in the Senate, the House and governors(...)

Secretary of State John Kerry. He described the former two-term senator from Colorado as his “longtime friend”. Photograph: AP Photo/Steve Helber

Gary Hart, the former US senator and two-time contender for the Democratic presidential nomination, is the latest in a long line of high-profile forme(...)

Former US secretary of state Hillary Clinton and her husband, former US president Bill Clinton, at the Harkin ‘steak fry’ in Indianola, Iowa. Photograph: Reuters/Jim Young

Hillary Clinton has sent another strong signal that she may run for the presidency in 2016 when she returned to the politically significant state o(...)

Hillary Clinton: has yet to declare whether she will run as a presidential candidate in the next US elections. Photograph: Matthew Healey/The New York Times

The organisers of tonight’s Dublin fundraiser for Hillary Clinton hope to use the event to establish a network of US supporters in Ireland in expecta(...)

Governor Martin O’Malley has clashed with the Obama administration after he said returning tens of thousands of unaccompanied Central American children  to their home countries would send them “back to certain death”.

The US immigration crisis has stirred political tensions even among erstwhile allies on the Democratic side as shown by a row between the White House (...)

Hillary Clinton: has told ABC News that she is focusing on promoting her book for the moment and will not make her decision on a 2016 presidential run until later this year. Photograph: David Paul Morris/Bloomberg

Hillary Clinton deflected continued speculation over whether she will run for president in 2016, telling ABC News in an interview yesterday to prom(...)

The US group has apparently promised to retain 20 per cent of the enlarged group’s R&D personnel in the UK.

Pfizer’s focus on keeping the British onside as it attempts to end the independent existence of its second-largest pharma group runs the risk of creat(...)