House of Representatives speaker power is they are selected by the whole house of reps and it speaks volume about that person ex they are intelligent, influential, persuasive and actually have a voice. They are the ones who give members the opportunity to speak, declaring and counting votes. They are the spokesperson for the for the house of reps. Versus the President pro temp, they are also elected by the whole membership of the senate yet , the rules of the senate control the senate them, they are only a facilitator of the rules.