Democratic presidential candidate Hillary Clinton. Photograph: Rick Wilking/Reuters

Democratic presidential candidates will hold the first of six primary debates on October 13th in Nevada, the party has said, setting out a debate cale(...)

 Pooja Mandagere (left) and Natalie Thompson celebrate  outside the US Supreme Court following the announcement of the ruling  that the constitution guarantees a nationwide right to same-sex marriage.  Photograph: Doug Mills/the New York Times

US president Barack Obama hailed a Supreme Court ruling legalising same-sex marriage across the country as a “victory for America.” The ruling mean(...)

And so, with Bush and Clinton dynasties now formally with a horse in the race, it might be tempting to see the emerging 2016 presidential election – 1(...)

 Hillary Clinton is the clear frontrunner for the Democratic presidential nomination in 2016, polling well ahead of three other candidates: Vermont senator Bernie Sanders, former Maryland governor, Irish-American Martin O’Malley and Lincoln Chafee, the former governor of Rhode Island. Photograph: Paul J Richards/AFP/Getty Images

Irish supporters of Democratic presidential candidate Hillary Clinton are hosting an event in Dublin on Saturday to coincide with a set-piece speec(...)

 Former Governor of Maryland Martin O’Malley formally announces his campaign for the 2016 Democratic presidential nomination in Federal Hill Park in Baltimore, Maryland. Photograph: Jim Bourg/Reuters

Every US presidential hopeful needs a song and Martin O’Malley is no different. The Irish American politician and great-grandson of an immigrant from(...)

Former Texas governor Rick Perry at the announcement in Dallas yesterday of his candidacy for US president in 2016. Photograph:  Ron Jenkins/Getty Images

With 521 days to go until the US presidential election, the field is already packed with candidates. Far more Republicans have declared; among (...)

Democratic US presidential candidate and former Governor of Maryland Martin O’Malley formally announces his campaign for the 2016 Democratic presidential nomination in Federal Hill Park in Baltimore, Maryland May 30, 2015. Photograph: Jim Bourg/Reuters

Protesters angered at Martin O’Malley’s zero tolerance policing policy as mayor of Baltimore heckled the Irish-American politician during his presiden(...)

Aidan Gavin (left) of  DTZ Sherry FitzGerald,   former governor of Maryland  Martin O’Malley  and  Mark FitzGerald  of Sherry FitzGerald Group.

US presidential hopeful Martin O’Malley is stressing his relative youth as he prepares to challenge the perception that Hillary Clinton’s campaign (...)

Panti raises her arms with supporters for same-sex marriage at Dublin Castle on Saturday. Photograph: Paul Faith/AFP/Getty Images.

Tributes and expressions of pride continued to come from political figures in the United States on Saturday in response to Ireland’s unprecedented pop(...)

Martin O’Malley, who is expected to announce his candidacy for US president shortly. Photograph: Tom Williams/Roll Call via Getty Images

Martin O’Malley, a likely contender to be the Democratic Party’s presidential candidate, is due in Dublin on May 24th after cancelling a trip last mon(...)