 Another major concern in all of this. Ariel, thank you. Next tonight, new calls for President Biden to end his bid for re-election. At least 31 members of Congress now asking him to step aside. More than a dozen just today. But the president remains publicly defiant, vowing to return to the campaign trail next week. While behind the scenes, sources say he is receptive to discussions about his future in the race. ABC's Selena Wang in Rehoboth Beach, Delaware tonight.