text:  Mr. Biden noticeably with a stronger, louder voice as opposed to the raspy, weaker one last night that led to poor reviews of his performance. ABC's Rachel Scott. There are real concerns within the Democratic Party and questions about whether President Biden should step aside. But sources close to the president tell me there's only one man who can make that decision, and that is the president himself. And so far, he's showing no signs of backing down. In fact, I'm told he's eager to get back on the debate stage in September.