On September 21, Kamala Harris, the US Vice President and Democratic presidential candidate, "invited" former US President and Republican presidential candidate Donald Trump to have another televised debate with her on social media, but Trump refused, saying that the time for this debate was "too late". Harris challenged Trump on social media: "I will be happy to participate in the second presidential debate on October 23. I hope Trump will join me." Trump refused the "invitation" at a campaign rally in Wilmington, North Carolina on the 21st, responding: "The problem with holding another debate is that it is too late, and voting has already begun." (Jin Shi)