Republican candidate Donald Trump and Democratic candidate Bernie Sanders. Photographs: Reuters

Billionaire Donald Trump and socialist Bernie Sanders won their New Hampshire primary elections, the second contest in the US presidential race, in vi(...)

US Republican presidential hopeful Donald Trump speaks to the crowd during a rally on Monday in Manchester, New Hampshire. Photograph: Don Emmert/AFP/Getty Images

Donald Trump raised eyebrows at his final rally before the New Hampshire primary by repeating a vulgar slur shouted from the crowd about a rival candi(...)

Republican presidential candidate John Kasich  in the spin room after the Republican candidates’ debate in New Hampshire. Photograph: Reuters/Rick Wilking

Some New Hampshirites have stopped answering their phones. The calls come several times a day from pollsters asking how they will vote in Tuesday’s “f(...)

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(...)

Sarah Palin and Donald Trump: “When Palin turned out to be utterly unqualified and unintelligible, spouting her own special Yoda-like language, it did not reflect poorly on women as a whole – only on her and John McCain.” Photograph: Cassi Alexandra/Bloomberg

It’s a tough call to figure out which place is more benighted: Hollywood or Saudi Arabia. Saudi Arabia was pulling ahead with all its beheadings and i(...)

Former Alaska governor Sarah Palin and Republican presidential candidate Donald Trump as she endorsed him for president at a rally at Iowa State University on Tuesday. “He is from the private sector, not a politician. Can I get a ‘Hallelujah!’”  Photograph: Mark Kauzlarich/Reuters

Sarah Palin’s meandering, fiery, sarcastic, patriotic and blustery speech endorsing Donald Trump for president Tuesday in Ames, Iowa, does not easily (...)

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(...)

Former Alaska governor Sarah Palin endorses Republican presidential candidate Donald Trump during a rally at the Iowa State University in Ames, Iowa. Photograph: Mary Altaffer/AP

A recurring theme among some Republicans in Iowa, the first state to pick presidential nominees in 11 days’ time, is that they are unsure about the pa(...)

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(...)

Donald Trump and Sarah Palin in New York in May 2011: “I’m proud to endorse Donald J Trump for president,” she announced. Photograph: Andrew Burton/Getty Images

Donald Trump has won the highest profile endorsement of his campaign to become the Republican presidential nominee: the backing of the party’s 2008 v(...)