Australian television shows on US politics often have a tone of despair at just how bad the Democratic Party is at the art of politics. And, related to that, how the Party lacks the ability to make necessary hard decisions.
Especially around asking people to retire. Arguably that one failing has doomed the Party (Ginsburg, Biden, Feinstein, Connolly, Pelosi, ...). Even Harris and Walz were coming to a Presidential election at the end of their careers. There is a different timeline where the Democratic Party retained power in the national legislature and courts simply by not dying in place.