Powerbroker and Wire-puller

Powerbroker noun - A person who is important by virtue of the people or votes they control.

Wire-puller and powerbroker are semantically related in power behind the throne topic. In some cases you can use "Wire-puller" instead a noun "Powerbroker".

Wire-puller noun - One who uses secret influence (i.e. pulls wires or strings) for his own ends.

Powerbroker and wire-puller are semantically related in power behind the throne topic. You can use "Powerbroker" instead a noun phrase "Wire-puller".