It's easy to think that the most powerful entity is the one with the biggest stick. Consider this though: imagine a VIP and their bodyguard. The bodyguard is much stronger and carries a gun, but he is not the one with power. The VIP can replace the bodyguard at will.
An entity that gets to tell millions exactly how to vote and which nuke-wielding bodyguard to hire is surely more powerful than said bodyguard.
An entity that gets to tell millions exactly how to vote and which nuke-wielding bodyguard to hire is surely more powerful than said bodyguard.