Joe Biden

The only way to overcome that is to demonstrate competence elsewhere, if not superior leadership. Unfortunately, Biden just doesn’t have the skills for that, nor the self-awareness to realize that he’s screwed up in the first place. The cascade will certainly bottom out at some point because Democrats are too invested in his presidency to abandon Biden, but independents and never-Trump Republicans will likely never return until Biden gives them a very good reason to do so — one or more that can overcome the disgrace of Afghanistan.