how to change goverment ethics mid game?

[Вфвыщт]

is it possible? does it happen with elections

[Apeironic_Entelechy]

You can change your governing ethics by embracing a faction, this will get you a single ethic point of whatever ethic they follow. You can only embrace a faction if they have more than 20% pops following them.

[OwnGoal99]

If you are a pacifist you need to get engaged in war or be militant in your dealings with aliens. Also you can embrace different ascendency traits. You need to do these things to get the new factions you are looking for.