Should the ethics of Presidential candidates matter?

The classical view on the relationship between ethics and rulership can be traced back to Plato (424-348 BCE), whose Republic argues that a state will never be well governed unless its rulers are virtuous.  Plato’s student Aristotle challenged his master on many issues (rejecting Plato’s radical views on gender, the family, and the private ownership of wealth), but the two agreed in linking personal virtue and effective leadership.  In contrast, the foundational texts of modern political philosophy – The Prince by Niccolò Machiavelli (1469-1527) and Leviathan by Thomas Hob