3) We do not lobby, vote in political elections, run for government office, or try to change governments. …Otherwise, how could we have a clean conscience when we preach the good news that only God’s Kingdom can solve mankind’s problems? source: https://wol.jw.org/en/wol/d/r1/lp-e/2016288#h=36
lobby verb [ I or T ] UK /ˈlɒb.i/ US /ˈlɑː.bi/
C2 to try to persuade a politician, the government, or an official group that a particular thing should or should not happen, or that a law should be changed:
https://dictionary.cambridge.org/dictionary/english/lobby
Recent example how WT Company and JW members participated in "lobbying" was writing letters to Russian Government and their politicians.