 The main “external controul” in a republic was the vote, which made powerful men accountable to those they ruled. However, voting was not enough, especially since the voters themselves might lack virtue and wisdom. “A dependence on the people is no doubt the primary controul on the government; but experience has taught mankind the necessity of auxiliary precautions.” In general, Madison’s “auxiliary precautions” involved dividing power among separate institutions and giving them the ability to check one another.