Over the past few days, the health of former President Joseph R. Biden Jr. has been called into focus with the disclosure that he has an aggressive form of prostate cancer.

At the same time, Democrats are undertaking a painful re-examination of what went wrong with Joe Biden’s campaign for re-election, and the Trump White House has released embarrassing audio of Biden being interviewed.

The Times journalists Michael Barbaro, Reid J. Epstein, Lisa Lerer and Tyler Pager sit down to make sense of it all.

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