'We owe it to American people, voters': Harris pushes Trump for 2nd debate

United States Vice president and Democratic presidential candidate Kamala Harris has urged former US president and her Republican opponent Donald Trump to hold another presidential debate.

Trump refused to have another debate with Harris next month and cited the commencement of early voting in some states as the reason behind his refusal.

However, the vice president was not ready to take "no" for answer and urged Trump on Sunday to accept a proposal to debate on CNN on October 23, as a follow-up to their September 10 debate on ABC, Reuters reported.

"He should accept because I feel very strongly that we owe it to the American people and to the voters to meet once more before Election Day," Harris told supporters at a fundraiser in New York City.

"We should have another debate," she added. "My opponent is looking for a reason to avoid."

A representative for Trump's campaign referred to the presidential candidate's comments at a rally on Saturday when asked about Harris' remarks.

Speaking to supporters at a North Carolina rally on Saturday, Trump said: "The problem with another debate is that it's just too late. Voting has already started."

Harris on Sunday acknowledged that early voting had started in some US states but noted that it is a close contest with more than a month to go.

"This race is as close as it could be. This is a margin of error race," she said.