When it comes to that spectacle, it was all lose. Trump couldn't answer most questions and just blah blah blahed lies with little policy and zero plan for anything. Biden did a good job showing why there should have been an actual primary season for the Democrats, but he did at least try to answer and corrected a couple of his gaffs(Biden gaffs aren't new, but man.... Dude is worn)
Everyone lost. This guy is correct, it's mind boggling there wasn't a week of headlines of Trump's attack on democracy
The debate just highlighted all the concerns that have been around this campaign from the start. The real nail in the coffin for Biden is the response to his terrible performance. They are sequestered and instead he needs to be out there showing the people that the debate was a one off. The fact that they aren't getting Biden out there basically confirms that he can't do it anymore.
Anyone that thinks Trump won that debate was almost certainly a trumper to begin with.