Which political reform gave voters the power to remove elected public servants from office?

Recall is the political reform that gave voters the power to remove elected public servants from office.

Recall is understood as a procedure that allows citizens to remove and replace a public official prior to the end of a term of office. Recall differs from another method implemented to remove officials from office, known as impeachment, in that it is a political device while impeachment is a legal process.

whose power in the senate is equal to the power of the speaker of the house?