text:  ABC News, I'm Dave Packer. President Biden back on the campaign trail in North Carolina on Friday, acknowledging his rough performance at Thursday's debate, but vowing to fight on some voters at that rally. Like David Tellem, say that they're more anxious than ever about the election. Biden was not strong. I suspect that they over-trained him. Biden back at Camp David today. Hundreds of people attended a vigil overnight for a 13-year-old boy killed in a police shooting in upstate New York. Police say he was pointing a replica handgun at an officer.