Donald Trump

Republican Donald Trump and Democrat Hillary Clinton will take to the stage in New York on Monday night.

The duel at Hofstra University could be the most watched debate in television history, with 100 million viewers.

There are 43 days until the election, with one poll on Monday suggesting some movement towards Mr Trump.

When Hillary Clinton takes the stage at the first presidential debate, she will make history. Over the past few months the level of scrutiny faced by the first female candidate for president of the United States has ramped up: her policies, her emails, her relationships have been critiqued, dissected and analysed. And so have her clothes.

So who is the man asking the questions - and what does he have in store?

High profile

Lester Holt's CV includes major network shows such as Dateline NBC, Today, and his current role as anchor of NBC Nightly News, which attracts millions of viewers every night.

That makes him a national celebrity, and well used to high-stakes TV.

He has already been accused of political bias, when Mr Trump labelled him a Democrat and complained about the "unfair system".

With national polls showing a tight race just six weeks out from Election Day, the Hofstra University fight offers one of the last chances for each to speak directly to the tens millions of voters who are expected to tune in.

For Clinton, a veteran debater, one of her biggest challenges will be both to provoke Trump and avoid being provoked by him, while delivering an earnest and candid performance.

The Texas senator fought Mr Trump in a bitter primary battle, marked by mud-slinging and personal insults.

Mr Cruz said he would fulfil his promise to vote for the Republican nominee and that electing Hillary Clinton would be "wholly unacceptable".

He drew ire at the Republican National Convention in July, when he was booed off stage for not endorsing Mr Trump.

Waving placards as they drove the red, open-top, double-decker past the Palace of Westminster and St. Paul's Cathedral, the campaigners urged the estimated 200,000 US citizens in Britain to register to vote in the election on November 8.

They stopped off at key American hotspots in the city, including the American School, the City of London financial hub and a popular Philly cheesesteak food truck in Spitalfields, East London.

"America is like the best idea the world ever came up with, but Donald Trump is potentially the worst idea that ever happened to America," he told CBS's Charlie Rose. "He could destroy it."

"America is not just a country," Bono continued in the interview that aired Tuesday on "This Morning." "America is an idea and that idea is bound up in justice and equality for all."

The philanthropist and activist, who was in New York for the meeting of the United National General Assembly, called Trump's rise to prominence within the GOP "really dangerous."

On Monday, Trump Jr. tweeted a graphic that likened Syrian refugees to Skittles, which swiftly triggered a wave of criticism.

"This image says it all. Let's end the politically correct agenda that doesn't put America first. #trump2016," he tweeted, with a graphic that said: "If I had a bowl of skittles and I told you just three would kill you. Would you take a handful? That's our Syrian refugee problem."

Find out all you need to know for the 2016 election on "The Daily DC" podcast

"There is so much to know and so much to learn and so much diplomacy and kindness and introspection that goes with that kind of job," Stewart told CNNMoney during a luncheon for Andrea Bocelli's foundation Sunday. "And it does not exist in the world of Donald Trump."

For Stewart, the stakes are high and the only choice is Hillary Clinton.

Mr Trump suggested Mrs Clinton's security detail should give up their guns and "see what happens to her".

He told supporters his rival wanted to "destroy your second amendment" - referring to the right to own guns.

Mrs Clinton's team has accused Mr Trump of "inciting people to violence".

Speaking at a rally in Miami on Friday, the Republican candidate said: "I think that her bodyguards should drop all weapons. They should disarm, right?'