let me clear all this confusion up for you. This has not been a Republic since the voluntary members of the union were prevented by military force from leaving the union. Well, duh, that is because if it's not a voluntary association, it is NOT a union at all. This is a democracy since 1865.
The pretense of this being a union was finally ended when the states lost their representation in 1913, taking out the only viable counterforce to runaway federal government that ever was. Now instead we have the perverted second "House" competing with the legitimate representatives of "The People" to bribe us with our own money for votes.