lobbying

/L AA1 B IY0 IH0 NG/
verb
  1. 1

    To attempt to influence (a public official or decision-maker) in favor of a specific opinion or cause.

    โ€œFor years, pro-life groups have continued to lobby hard for restrictions on abortion.โ€

noun
  1. 1

    The act of one who lobbies.

Source: https://en.wiktionary.org/wiki/lobby, https://en.wiktionary.org/wiki/lobbying