Ohio governor John Kasich is last in the Republican presidential race and sees a contested convention as his only hope. Photograph: Eduardo Munoz Alvarez/Getty Images

Peacocks strutted around the lawns of the Milleridge Inn as a small crowd wandered into the Jericho, New York restaurant on Friday. The people passe(...)

A woman reacts as US Republican presidential candidate Donald Trump walks past following a campaign event   in Rochester, New York. Photograph: Carlo Allegri/Reuters

Billionaire Donald Trump grabbed headlines again yesterday by rubbishing the “rigged” way in which Republicans pick a presidential nominee and critici(...)

 Republican presidential candidate Ted Cruz (L) shakes hands with former  Jeb Bush, who has withdrawn from the race,  before the start of a Republican Presidential Debate. Photograph: Robyn Beck/AFP/Getty Images.

Jeb Bush, the former governor of Florida who left the US presidential race after the South Carolina primary, has endorsed Ted Cruz to contest the pres(...)

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 (...)

Republican US presidential candidate Donald Trump (L)  and Democratic US presidential candidate Hillary Clinton (R) rolled up a series of wins on Tuesday. Photograh: Scott Audette/ Javier Galeano/Reuters

Donald Trump and Hillary Clinton scored major wins on the biggest night of the US presidential election so far, extending their leads in the races to (...)

A man looks on as he waits for Republican US presidential candidate Donald Trump to speak at a campaign rally on Super Tuesday in Columbus, Ohio March 1st. Photograph: Aaron Josefczyk/Reuters

Voters in 12 US states go to the polls on Tuesday as Donald Trump and Hillary Clinton, who have had the most success in the early nominating contests,(...)

Democratic presidential candidate former secretary of state Hillary Clinton greets supporters during a ‘Get Out The Vote’ event at Lake Taylor Senior High School on Sunday in Norfolk, Virginia, ahead of Super Tuesday. Photograph: Getty

Voting has begun in the so-called Super Tuesday primaries in which candidates vying to secure their party’s nomination for the November US presidentia(...)

Photojournalist Chris Morris is escorted by police during the Donald Trump rally on Monday. Photograph: Steve Helber/AP

A Donald Trump rally in Virginia was repeatedly disrupted on Monday by protesters, including some from the Black Lives Matter movement. It was a st(...)

US Republican presidential candidate Donald Trump: polls put the party frontrunner ahead in Alabama and Oklahoma. Photograph: Reuters

Billionaire Donald Trump has been heavily criticised for refusing to repudiate an endorsement from racist group the Ku Klux Klan. The 2012 Republica(...)

Hillary Clinton:  “firewall” of southern minority voters held strong against Bernie Sanders. Photograph: Gerald Herbert/AP Photo

After two narrow wins and one heavy defeat in the early nominating states, Hillary Clinton banked her first landslide victory, in South Carolina’s pr(...)