Question

an informal political group designed to gain and keep power

Answer 1

The only thing that i could find was political machine. Does that answer match?

Answer 2

The answer is a Political Machine. Political machines are an informal political group designed to gain and keep power. Also, they can be an organization linked to a political party that often controlled local government, in recent American history. In each district, within a city, a representative controlled jobs and services, and they were also known as "political bosses".

Answer 3

Thanks for the verification @KittyJosh