President Joe Biden had the kind of weekend on which history pivots — trying to stabilize his campaign after a disastrous and demoralizing debate against former President Donald Trump, then gathering with family as previously planned at a secluded mountain retreat where they discussed the path forward.

The 81-year-old Democrat went into the Thursday night debate hoping to banish questions about his advanced age. But his meandering and at times incoherent answers only generated new fears that Democrats were stumbling toward a brutal loss in November's election and led to talk that he should bow out of the race.