text:  President Biden sought to highlight former President Trump's legal issues, but ABC's Mary Alice Parks says the major issue for the president is performance at Thursday's debate. At a fundraiser overnight, President Biden acknowledged the debates and I understand the concern. I didn't have a great night, but I'm going to be fighting harder. Several top party organizers are deeply worried, of course, about whether he is up to the task and can win. But the reality is there is no way to swap out their party's nominee at this stage unless Biden himself steps aside.