>>96803875
I honestly can't even see elves past a certain age even caring much about government.
Everyone's got their own projects, hobbies, their old First Kingdom-old manor could use a new coat of paint…
I envision it as something like this:
>a bunch of young elven "adventurers"
Read: elves at "learning about the world" and "getting it out of your system" phases, where "it" could be anything, from a desire for change and seeing it NOW, to fucking everything that moves.
>relatively-young adult elves that make up the majority of politically-active elves
Still young to desire change, but mature enough to know it takes time and effort to enact them.
>"mature" elves that still keep in touch with how the empire/kingdom is doing
Folks that take time off their own stuff to help out, usually by taking on apprentices or teaching in universities, elven or not.
>elders
Practically hermits that rarely crawl out of their towers, and those that do may bring out with them something world-altering, good or bad.
The older an elf gets, the more they focus on their own devices, leaving the worldly matters to the young and eager for change.
Meanwhile, since elves are immortal and, thus, unlikely to develop conditions like dementia or Alzheimer's, I don't think they'd get too ornery, which is partly caused by organic degradation.
Think of it like this: old elves have already proven everything, both to themselves and others, and don't have such a need for validation. Now they seek fulfilment through their craft, or whatever it is they do.
Being sensible adults they are, they step aside and let the next generations take the scene, acting as guides or mentors to help them when they stumble or fall short.
So, with all this in mind, a political system would likely encompass mostly the younger generations, while seeking counsel on pertinent matters with the wise elders, who live in their own world, perhaps literally if it's a high magic setting.