Biden says ‘chicanery’ at polls is only way he could lose US election to Trump

Democratic challenger clarifies his comment saying he would accept election result

US Democratic presidential candidate Joe Biden speaks during a campaign event on 10 October (Reuters)

Democratic US presidential nominee Joe Biden said on Saturday "the only way" he could lose to President Donald Trump was through "chicanery", before clarifying that he will accept the election result.

Mr Biden encouraged potential voters at a campaign stop in the must-win battleground of Pennsylvania, telling them “make sure to vote because the only way we lose this is by the chicanery going on relative to polling places”.

Mr Biden referenced what he said were attempts by Mr Trump to discourage voting, including casting doubt on the security of mail-in ballots and the encouragement of potentially intimidating Republican poll observers. 

When asked directly, Mr Trump has repeatedly avoided confirming that he would accept the result of the election.

Before leaving the state, Mr Biden told reporters his comments were "taken a little out of context" and added that “I'm going to accept the outcome of this election, period”.

Mr Biden has previously said that his single greatest concern was Mr Trump trying to "steal" the victory. 

His campaign has recruited hundreds of lawyers and volunteers to prevent election day chaos.

Mr Trump's campaign has accused Mr Biden of lying and stoking fear.

Election experts have been on edge about the process, given chaos and legal challenges during primary elections held amid the outbreak of coronavirus.