Where does “sisäpoliittisesti” come from?

sisäpoliittisesti (Finnish) comes from Finnish sisäpoliittinen, from Finnish poliittinen, from Latin polīticus, from Swedish politisk, from Swedish politik, from Ancient Greek πολιτικός, from Ancient Greek πολῑ́της, from Ancient Greek -της — Creates verbal adjectives from verb stems.

sisäpoliittisesti (Finnish): in a manner that pertains to domestic or internal politics