Biden Tells Allies He Knows He Has Only Days to Salvage Candidacy

President Biden has told key allies that he knows the coming days are crucial and understands that he may not be able to salvage his candidacy if he cannot convince voters that he is up to the job after a disastrous debate performance last week.

According to two allies who have spoken with him, Mr. Biden has emphasized that he is still deeply committed to the fight for re-election but understands that his viability as a candidate is on the line.

The president sought to project confidence on Wednesday in...