Here's how to watch Biden's news conference Thursday as he tries to quiet doubts after the debate

President Joe Biden will hold a news conference Thursday that is the key event in a monumental week for his campaign. The Democratic incumbent is fending off calls for him to step aside as the party's presumptive nominee following a shaky debate performance. It’s just the type of event that many political watchers have said that Biden needs to pull off successfully to turn back demands — including from within his own party — that he withdraw.