I thought I posted this article from ABC (in Oz). It's a good analytical piece by Jade Macmillan.

Could Joe Biden be replaced? Why the president is refusing to give in to his critics

Also I have watched most of the PBS Washington Week With The Atlantic discussion this morning (on SBS TV in Oz) and I'm about to watch the rest of it. The panelists have some good analysis of the debate and its possible consequences.