From where does one get the idea that a politician elected with oh say... a 36% plurality will be able to govern effectively with an opposition of %64? Further balkanizing our political process will not interject more efficiency into the system. Things wont get better, they'll get substantially worse.
Its an idea whose main appeal frankly is to the yahoos who would get some charge out of seeing someone in office who thinks and talks exactly as they do. Only problem is that person would get absolutely nothing done.