Trump campaign admits to trailing Clinton in US presidential race

Despite the former Secretary of State holding a convincing lead in the majority of national polls, Trump has maintained that the electorate still remains on his side.

"We are behind. She has some advantages," said campaign manager Kellyanne Conway. "We're not giving up. We know we can win this."

"He's going to visit all of these swing states many times and we feel that with Hillary Clinton under 50% in some of these places, even though she has run a very traditional and expensive campaign, that we have a shot of getting those undecided voters."

Clinton's campaign has also adopted an unnatural stance, warning against complacency as it seems to be taking an advantage in various swing states.

"These battleground states are called that for a reason," said campaign manager Robby Mook on CNN on Sunday. "They are going to be incredibly close. We don't want to get ahead of our skis here. We are just as focused on Ohio, Iowa, Florida as we have ever been."

Trump has lost the support of several high-profile Republicans during the course of the campaign due to a raft of controversial comments, and has even suggested that he would not accept the result of the election.

US citizens will go to the polls on Tuesday fortnight to decide the next president of the country, in a race that has been characterised by controversy and insults, as much as policy and performance.