IPA: //suːpərˈlɒbiɪst//
KK: /ˈsuːpərˌlɑːbiɪst/
A person who is very skilled or influential in persuading government officials to support specific policies or legislation.
The superlobbyist managed to secure funding for the project by convincing several lawmakers to back it.
Superlobbyist → It is formed from "super-" (meaning above or beyond) and "lobbyist" (from the word "lobby" which comes from the Old French "lobby", meaning a corridor or waiting room, and refers to someone who seeks to influence legislation). The term "superlobbyist" describes someone who operates at a higher level of influence in lobbying activities, going beyond the usual efforts of a typical lobbyist.
Think of someone who operates 'above' ('super-') the usual efforts of a lobbyist, indicating a higher level of influence in political advocacy.
No commonly confused words.