Originally Posted by Fedaykin
Yep, a republic in which the framing document specifies that the chief executive is elected not by the people, but by the states, hence the concept of each state casting all or nothing votes.
Wrong answer. The Constitution gives the States the power to select Electors to the Electoral College in a process freely decided by each State's government. It makes no stipulation on who those electors should be or how they should vote.
It's impossible that the framers had in mind a winning-party-takes-all mandate since they had no parties in mind when they designed the Electoral College. Like most things, they intended to leave the details up to each state.