Lindsey Graham, a three-term senator from South Carolina, cited the increasing violence in the Middle East as motivation for his decision to run. Photograph: Win McNamee/Getty Images

Senator Lindsey Graham, a foreign policy hawk, has become the latest Republican to join the party’s fast-growing field of presidential candidates. Mr (...)

 Iraqi prime minister Haider al-Abadi: ordered his country’s security forces not to abandon their positions in Anbar province to the militants. Photograph: EPA/Alaa Al-Shemaree

A purported message from the Islamic State group yesterday claims it holds entire city of Ramadi after Iraqi forces fled. The message came after Iraq’(...)

 Dodging the Iraq issue, Jeb Bush said that “talking about hypotheticals” did a disservice to those who served there.  Photograph: Alvin Baez/Reuters

Former Florida governor Jeb Bush, yet to declare his presidential candidacy but expected to make an announcement shortly, is struggling to escape the (...)

George Mitchell:  Spent a month going around each of the 10 parties, and the British and Irish governments, seeking agreement on his timetable. Photograph: The Irish Times

Senator George Mitchell said he almost lost his temper once during the difficult negotiations that led to the 1998 Belfast Agreement, which put Northe(...)

Booking photos provided by the Los Angeles County Sheriff’s Department show (L to R) David Henry, Brandon Kiel and Tonette Hayes, who were arrested on suspicion of impersonating police officers through their role in an organisation known as the Masonic Fraternal Police Department. Photograph: Los Angeles County Sheriff’s Department AP

A community liaison for California’s attorney general has been charged with impersonating a police officer for his role in a self-proclaimed police or(...)

Senator Elizabeth Warren: ‘No more secret deals. No more special deals for multinational corporations.’ Photograph: Yuri Gripas/Reuters

Powers that would allows US president Barack Obama to agree trade deals with Asian countries and the European Union, as well as the deals themselve(...)

US commercial airliners could be hacked in-flight by passengers using a plane’s wireless entertainment system to access its flight controls, a new report from the US Government Accountability Office has claimed. File photograph: Kham/Reuters

US commercial airliners could be hacked in-flight by passengers using a plane’s wireless entertainment system to access its flight controls, a federal(...)

Former first lady Hillary Clinton is viewed as the Democrats’ best bet of retaining the White House. Photograph: Andrew Gombert/EPA

Hillary Clinton will end months of speculation on Sunday when she announces she is running to become the first female president of the United States,(...)

 Conservative US Senator Rand Paul announced Tuesday he is running for the Republican Party’s nomination for the 2016 presidential race. Photograph: Mandel Ngan/AFP/Getty Images.

US Sen Rand Paul declared himself a candidate for the Republican nomination for president on Tuesday, aiming to upset the political order in Washingto(...)

Hillary Clinton:  responded positively but cautiously to the framework deal.  Describing the tentative agreement as “an important step” in preventing a nuclear-armed Iran, she said: “The devil is always in the details in this kind of negotiation. The onus is on Iran and the bar must be set high.” Photograph: Nicholas Kamm/AFP/Getty

Likely Republican challengers for the US presidency in 2016 voiced strong opposition to the outline of a nuclear deal with Iran, rejecting any deal (...)