lobby

[1]	(bring) pressure (to bear) , (exert) influence , persuade , pull strings/wires , put one's weight behind , sway , press , push , promote , urge , (Brit) pressurize
[2]	buttonhole

[1]	anteroom , foyer , entrance-hall , antechamber , entrance hall , vestibule , entry , hall , foyer , (US) entry-way , reception (room/area) , vestibule , waiting-room , corridor , hall , hallway
[2]	special-interest group , pressure group , lobbyist
[3]	pressure group , third house