Donald Trump says he is unlikely to have a good relationship with David Cameron because the British prime minister cast the US presidential candidate as "divisive, stupid and wrong" for proposing a temporary ban on Muslims entering the United States.

Straining to mend their party after months of chaos, Donald Trump and House Speaker Paul Ryan declare themselves "totally committed" to working together after a fence-mending personal meeting on Thursday.

Both Ted Cruz and John Kasich have fallen by the wayside, while Donald Trump dashed to the finishing line of Republican Party nomination for the US presidential race in 2016.

Republican Donald Trump pulled even with Democratic rival Hillary Clinton in a Reuters/Ipsos opinion poll released on Wednesday, in a dramatic early sign that the Nov. 8 presidential election might be more hotly contested than first thought.

Donald Trump may find it tough to get Republican leaders behind his campaign, but he's got some faraway fans trying to get the gods on his side.

Bernie Sanders has won the West Virginia primary in the Democratic race for the presidential nomination, US media project.

US House Speaker Paul Ryan says he cannot currently support Donald Trump as Republican presidential nominee.

David Cameron slams Donald Trump's 'divisive' ban on Muslims as calls grow to stop billionaire entering UK.

Ohio Governor John Kasich has dropped out of the presidential race after struggling to gain traction against Republican front-runner Donald Trump, US media report.

Republican presidential front-runner Donald Trump suggested that Rafael Cruz, his chief opponent's father, is connected to the man who killed President John F Kennedy.

Republican presidential front-runner Donald Trump accuses China of "raping" the US, in renewed criticism of China's trade policy.

Republican White House frontrunner Donald Trump promises a top-to-bottom overhaul of US foreign policy Wednesday to put "America first" and make its allies pay up.

Donald Trump wins presidential primaries in all five north-eastern US states voting while Hillary Clinton takes four.

Republican Donald Trump took aim at rival John Kasich's table manners Monday, labeling his eating "disgusting" and calling him "a stubborn guy who eats like a slob."

Ted Cruz nails down all 14 delegates up for grabs at the Republican Party convention in Wyoming.

Republican Donald Trump says the party's leaders do not want him to win the presidential nomination, and the rules are "stacked" against him.

Bernie Sanders is still behind when it comes to delegates and votes, but he has one clear advantage over his Democratic and Republican presidential rivals — a lot of people actually like him.

For Americans of nearly every race, gender, political persuasion and location, disdain for Donald Trump runs deep, saddling the Republican front-runner with unprecedented unpopularity as he tries to overcome recent campaign setbacks.

President Barack Obama has opened his final presidential campaign — against Donald Trump.

Texas Senator Ted Cruz scores a commanding victory over Donald Trump in Wisconsin's presidential primary Tuesday, putting the Republican frontrunner on notice that his march to the nomination is not a done deal.