Donald Trump will seek to give his bid for the White House a much-needed boost today as he clashes with Hillary Clinton for the final debate before America goes to the polls.

Launching a last ditch offensive, Trump will bring Barack Obama's Kenyan half brother Malik - a supporter of the billionaire - to the showdown as his guest. He's also invited Pat Smith, the mother of one of the victims who died in 2012 attack on the US diplomatic mission in Benghazi who has said she blames the former secretary of state "personally for the death of my son".

He will no doubt rally his supporters to look out for signs the election is being rigged.

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Trump trails his rival by an average of almost 7 per cent in national polls, and is struggling just as much in crucial swing states where the election will be decided.


Both candidates are battling their own scandals in the final weeks of the campaign - Trump faces ongoing allegations about his treatment of women, and Mrs Clinton is battling mounting criticism over her deleted emails.

Late yesterday People magazine identified six people who have corroborated the claims by former People journalist Natasha Stoynoff that Trump sexually assaulted her.

Malik, the half-brother of in US president Barack Obama, will be attending the final debate as a guest of Donald Trump. Photo / Getty
Malik, the half-brother of in US president Barack Obama, will be attending the final debate as a guest of Donald Trump. Photo / Getty

Trump has previously suggested Stoynoff was not attractive enough for him to kiss her uninvited.

Clinton meanwhile took yesterday off from campaigning, instead electing to focus purely on debate preparation.

She is likely to face questions about her email server on the back of new WikiLeaks documents that showed a public servant tried to strike a deal with the FBI to declassify an email from her private server.

The public servant proposed the FBI a "quid pro quo" to allow the FBI to operate in new countries if it declassified an email.

Trump has ramped up his preparations in advance of the third debate after bragging in the first showdown that he prioritised being real over being rehearsed.

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He will seek to deliver a knock out blow to his rival, particularly focusing on Clinton's status as an insider who has been complicit in government for decades.


He is also rallying his supporters by warning the election could be "rigged" against him.

"They even want to try and rig the election at the polling booth, where so many cities are corrupt and you see that and voter fraud is all too common," Trump said yesterday.

"Voter fraud is all too common and then they critcisie us for saying that."

US President Barack Obama yesterday said it was unprecedented for a presidential candidate to claim election fraud before an election had even occurred.

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"I have never seen in my lifetime, or in modern political history any presidential candidate trying to discredit the elections and the election process before votes have even taken place," he said.

"If you start whining before the game's even over ... then you don't have what it takes"