Presidential candidate Donald Trump  claimed Ted Cruz “stole” the Republican caucuses and accused him of “fraud”. Photograph: Charles Krupa/AP Photo

Billionaire Donald Trump, smarting from his second-place finish in the Iowa caucuses, the country’s first presidential nominating contest, has escala(...)

Democratic frontunner Hillary Clinton’s voting precinct leaders check final counts before her victory  by five delegates to Bernie Sanders’s four, in Simpson Barn, Johnston, a suburb of Des Moines, Iowa. Photograph: Simon Carswell

“Come on over here, I’ll give you some ice cream,” says a Martin O’Malley supporter, trying to encourage a Bernie Sanders man to defect to the long-sh(...)

Billionaire Donald Trump lost to Texas senator Ted Cruz in the Iowa caucuses, while Hillary Clinton and Bernie Sanders were locked in a virtual tie after a hard-fought battle. Photograph: Composite/Bloomberg/AFP

Billionaire Donald Trump lost to Texas senator Ted Cruz in the Iowa caucuses, while Hillary Clinton and Bernie Sanders were locked in a virtual tie af(...)

The idea that  Trump could carry Republican hopes and lead the party of Abraham Lincoln into November’s election  is now a very real prospect. If he wins in the Iowa caucuses next Monday, it could be difficult to stop him. REUTERS/Scott Morgan

Cast your mind back seven months to that moment Donald Trump descended that escalator at Trump Tower into the presidential race to the strains of Neil(...)

Republican presidential candidate Ted Cruz campaigns at High Point Bulls Oswald Barn in Osceola, Iowa on Tuesday. Photograph: Jim lo Scalzo/EPA

Ted Cruz came to a cold hay barn on a farm in a remote part of a snowy Iowa to make his case to conservatives and evangelicals in a final push to win (...)

To-morrow the electors of the Irish Free State will be required to make the most momentous decision of their lives. Since the dissolution of Dáil Éire(...)

Republican presidential hopeful Marco Rubio during a campaign stop at the Plymouth Senior Center in Plymouth, New Hampshire, in advance of the primary on February 9th. Photograph: CJ Gunther/EPA

About 100 people braved freezing temperatures to hear Republican senator Marco Rubio of Florida, the youngest candidate running for the presidency, at(...)

Republican presidential hopeful Donald Trump looks on as former Alaska governor Sarah Palin endorses him in Iowa on Tuesday. Photograph: Sam Hodgson/The New York Times

Former Republican vice-presidential nominee Sarah Palin delivered a boisterous and at times bewildering speech as she publicly endorsed the party’s p(...)

If we could start from scratch perhaps most health economists would recommend single-payer, a Medicare-type programme covering everyone

Health reform is the signature achievement of the Obama presidency. It was the biggest expansion of the social safety net since Medicare was establish(...)

Democratic presidential candidate Hillary Clinton gestures as she walks on stage at a Democratic fundraising dinner featuring all three candidates in Las Vegas, Nevada. Photograph: Getty Images

After running as a man last time around, Hillary Clinton is now running as a woman. Matthew Dowd, the former George W Bush strategist who became an(...)