Was it just Biden who imploded or did the whole Democrat party implode, too?

Was it just Biden who imploded or did the whole Democrat party implode, too?: Depending on whether you are a conservative or a leftist, the debate last night was either fun or awful. I’ll have a few things to say about it but the more pivotal question is whether Biden’s disastrous performance harmed only him or if it harmed the entire Democrat party. It’s an important distinction because the former means Democrat machinations and a possible path to victory, while the latter means that the Democrats, finally, are a spent force.