On the 21st, U.S. Vice President and Democratic presidential candidate Kamala Harris "invited" former U.S. President and Republican presidential candidate Donald Trump to have another televised debate with her on social media. Trump refused, saying that the debate would be held "too late."

Harris challenged Trump on social media: "I would be happy to participate in the second presidential debate on October 23. I hope Trump will join me."

Harris campaign manager Jen O'Malley Dillon said in a statement that Harris has accepted CNN's invitation to hold a debate on the 23rd of next month, and "believes Donald Trump should have no problem agreeing to participate in this debate."

Trump declined the invitation at a campaign rally in Wilmington, North Carolina on the 21st, responding: "The problem with holding another debate is that it's too late. The voting has already begun."

October 23 is less than two weeks away from the US presidential election on November 5. Minnesota, South Dakota and Virginia have taken the lead in opening early voting since the 20th of this month. By mid-October, more than 10 states will open on-site voting.

Trump said that Harris had the opportunity to accept the debate invitation from Fox TV in the United States, "I waited and waited, but they (Harris campaign team) refused."

On the 10th of this month, Harris and Trump had their first televised debate. The debate was hosted by the American Broadcasting Corporation. Some real-time polls in the United States believe that Harris performed better in the debate. However, Trump was satisfied with his performance in the debate and did not think he lost to Harris.