ON THE TRAIL: President Donald Trump will be in North Carolina and Florida; Democratic challenger Joe Biden will be in Pennsylvania. DUELING TOWN HALLS: Trump and Biden will compete for TV audiences in dueling town halls instead of meeting face-to-face for their second debate as originally planned. The two will take questions in different cities on different networks: Trump on NBC from Miami, Biden on ABC from Philadelphia. Trump backed out of plans for the presidential faceoff originally scheduled for the evening after debate organizers shifted the format to a virtual event following Trump’s coronavirus diagnosis.