Martin Shkreli, an infamous American pharmaceutical bigshot often considered 'the most hated man in America', endorses Donald Trump for US presidential elections.

Supporters and opponents of Republican presidential nominee Donald Trump clashes in the city of San Diego in California.

Donald Trump wins Republican nomination for president, completing an unlikely rise that has upended the political landscape and sets the stage for a bitter fall campaign.

Protesters outside a Donald Trump rally in New Mexico have thrown burning T-shirts and bottles and clashed with police.

Can all those years of Donald Trump saying "you're fired" on reality TV actually get him hired - as president?

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.