Donald Trump exits the stage after speaking during a Super Tuesday night event in Palm Beach, Florida. Photograph: Luke Sharrett/Bloomberg

The biggest day of the US presidential battle led to the victories for Donald Trump and Hillary Clinton but four state wins for Bernie Sanders, three (...)

Presidential candidate Donald Trump claims Megyn Kelly unfairly questioned him in the first Republican debate. Photograph: Reuters

Businessman Donald Trump’s row with Fox News that boiled over this week leading to his decision to skip the television network’s debate last night has(...)

 Democratic presidential candidate Hillary Clinton speaks at a campaign event at the Jewish Federation of Greater Des Moines on  in Des Moines, Iowa. “We need a president who understands and can do all parts of the job,” she said. Photograph: Brendan Hoffman/Getty Images

Republican and Democratic candidates make a final push through Iowa this week before voters in the midwestern state have the first official say in the(...)

Senator Ted Cruz, speaking during a rally stop in Sibley, Iowa, on Wednesday, has 31 per cent support among Republicans in the state, ahead of Donald Trump who has 27.4 per cent. Photograph: Daniel Acker/Bloomberg

Ted Cruz stands casually dressed in jeans and a shirt with rolled-up sleeves before a blackboard listing the day’s specials – beef and chicken noodle (...)

US senator Ted Cruz  and his wife Heidi applaud at an event in Morningside College, Sioux City, Iowa, earlier this year. Photograph: Lane Hickenbottom/Reuters

While most excoriated Donald Trump for his proposal last week to ban Muslims from entering the United States, one rival Republican was unusually caref(...)

Republican presidential hopefuls Ben Carson and Donald Trump: a poll on Tuesday show Carson with a 26 to 22 per cent lead over Trump nationally in the race for the party’s candidacy. Photograph: Frederic J Brown/AFP/Getty Images

It’s first-time candidates Ben Carson and Donald Trump versus everyone else tonight, as the Republican Party has its third debate (8pm eastern time; (...)

Pope Francis arrives to give a mass in Holguin, Cuba, a cradle of Catholic faith and home of Fidel and Raul Castro. Photograph: Rodrigo Arangua/AFP/Getty Images

During the visit of Pope Francis to the US, which starts on Tuesday, the pontiff will address a group of 200 poor and sick beneficiaries of Catholic c(...)

Republican presidential hopefuls Donald Trump (left) and Jeb Bush high five during the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California. Photograph: Frederic J Brown/AFP/Getty Images

Republican frontrunner Donald Trump drew fire from rivals during the party’s second presidential debate over his campaign insults with Carly Fiorina, (...)

Seventeen Republicans, led by outspoken billionaire Donald Trump, are seeking the party’s presidential nomination. Photograph: Frederic J Brown/AFP/Getty Images

The head of the Republican Party has said its presidential candidates are unlikely to attack each other in the party’s first official debate but inste(...)

Ahead of the field: Donald Trump in Texas on Thursday. He said he’s confident of winning the Hispanic vote. Photograph: Matthew Busch/Getty

On Tuesday the Republican senator Lindsey Graham, one of 16 candidates seeking his party’s presidential nomination in the 2016 US elections, appear(...)