The Democrats are in the last stages of what is both an ideological scrap and intergenerational scrap (ie. establishment faction and more progressive faction, both of which line up approximately along generational lines). Fairly soon I expect control to tip over to the younger, more urgently progressive faction. To some it will look like a sudden leftward lurch, because there is a built-in time step (the four year presidential election cycle). Some of the people Democrats need to form a stronger centrist faction are still fighting the lost cause to reassert control over the Republican party (eg. the ex-neocons who think they can burn down the Republican party and rebuild it to suit themselves), but get them talking about foreign affairs and it takes them about 30 seconds to spin up over the necessity to remain mired in conflict abroad, which most people in the US are shot of.
So younger leadership is coming, probably in 2024.