Would this be an example of the exception proving the rule?

It still seems like an accident of history that Americans sent Jimmy Carter to the highest office in the land. For as much as they claim to want a regular Joe/Joe-ette as President (the mirage of the unpretentious 'I can have a beer with him' candidate) they seem to vote for people that are the polar opposite.

Truman is an even better example

Before they passed a presidential pension bill Truman was basically broke, living of his army pension