"Don't fall in love with politicians, they're all a disappointment. They can't help it, they just are"

This quote by Peggy Noonan is a cautioning to not get too attached to political leaders. She acknowledges that politicians are typically a frustration, but she also indicates that it is not their fault. It is just the nature of politics that results in frustration. Politicians are frequently forced to make hard decisions that might not be popular with the general public, and they might not always have the ability to keep their pledges. This quote is a tip that political leaders are human which they are not ideal. It is important to bear in mind that they are doing their finest to serve the public, even if it does not always exercise. Eventually, it is very important to be realistic about politicians and not expect too much from them.