Experts have warned a last-minute attack on Hillary Clinton could completely derail her campaign moments before the US election day.

Battling back a stubborn cough while delivering her Labor Day rally speech, Clinton took jabs at her Republican opponent Donald Trump while on the trail in Cleveland, Ohio.

Clinton cancelled two days of campaigning, inserting new speculation about her health into a campaign in which Trump has called her weak and unfit.

Hillary Clinton has stumbled, verbally and physically, in the past few days.

COMMENT: The truth is we're all more Donald than we would like to be. But how many Trump traits do you have?

Clinton's claim that half of Donald Trump's supporters fit into a "basket of deplorables" prompted a swift and negative reaction from Republicans.

COMMENT: Why is the US election down to being between Donald Trump and Hillary Clinton? Alan Duff reckons it's because the US is weird and contradictory.

Donald Trump's physician declared his patient healthier than all 43 American presidents.

The FBI's year-long investigation of Hillary Clinton's private email server uncovered 14,900 emails that had not been disclosed by her attorneys.

Under fire Trump campaign chairman and chief strategist Paul Manafort has resigned from the campaign.

Big data analytics is helping businesses and governments to make strategic, well-informed decisions.

Donald Trump proposed a new ideological test for all Muslim immigrants and visitors to this country, allowing entry only to "those who support our values."

'He is totally nuts,' says Hollywood star.

Crowds cheered Donald Trump for a $20 million gift to a children's home. But did he ever make the donation?

Historians may conclude that the 2016 US election was decided in early August when Trump suffered one of the most politically calamitous weeks ever.

Nude photos reveal inconsistencies in Melania's story about her early days in the United States.

Award-winning NZ Herald editorial cartoonist Rod Emmerson explains the thinking and process behind his Donald Trump illustration that appears in the world section of today’s paper.

COMMENT: The support for Trump, Sanders and Brexit is a sign that something is rotten in the state of our democracy.

COMMENT: Was America listening? There's madness around. Some of it may be anger and fear but mostly it looks like fun. Mindless, reckless, foolish fun.

COMMENT: Hillary Clinton is a perfect picture of pragmatism and power. That is the contrast.

Hillary Clinton had a lengthy to-do list yesterday: Reintroduce one of the most famous people in the world. Take down Donald Trump.

Michelle Obama made clear this week that she is all-in for Hillary Clinton's presidential campaign.

Hillary Clinton spoke directly to Trump's constituency of white, working-class voters - but delivered in a style sharply contrasting to the Republican convention.

Trump Jr says Obama plagiarised his quote, but not before he borrowed it from Obama and both president Bushes

Barack Obama has offered his support for Hillary Clinton at the DNC saying "there has never been anybody more qualified to serve as president".

Trump has a two-point lead in a poll for likely presidency for the first time since early May and other indicators have been in a downtrend for Clinton.

Comedian Sarah Silverman was left red-faced at the Democratic National Convention today as part of the crowd turned on her.