Monday was a great day on Joe Biden’s post-debate redemption tour. The depth of his support within the Congressional Black and Hispanic caucuses became clear for the first time. Biden’s defiant and forceful responses to calls that he should bow out of the presidential race seemed to halt the slow bleed,

All of which should be a cautionary tale to Joe Biden and the team around him as they ferociously battle to retain his spot atop the Democratic presidential ticket after his disastrous debate performance.