text:  In North Carolina Friday, President Biden sounded less hoarse and appeared more energetic than he did during Thursday night's presidential debate. I know I'm not a young man. His performance on stage against former President Donald Trump raised questions among many Democrats about Biden's age and fitness. I don't speak as smoothly as I used to. I don't debate as well as I used to. But I know what I do know. I know how to tell the truth.