Tonight on The Last Word: Vice President Harris agrees to a second debate while Donald Trump says it’s “too late.” Also, polls show a tight race for the Florida Senate seat. Plus, Ukraine President Zelenskyy visits a Pennsylvania plant producing weapons for Ukraine. The Mark Robinson porn site scandal rocks the North Carolina governor’s race. And Democrats fight to keep the Senate majority. Anderson Clayton, Stuart Stevens, Debbie Mucarsel-Powell, Amb. Michael McFaul, Maya Wiley, and Rep. Andy Kim join Jonathan Capehart.