Republican Politicians and Rusher's Gap

This afternoon it was reported that former Texas Governor Rick Perry made public that he would support Donald Trump. Shortly after on there was the following tweet:

Phineas Fahrquar ‏@irishspy:

It bears repeating: "Politicians will always disappoint you. Always."

In short order I thought of Rusher’s Gap, a concept that was shared in William F. Buckley book or column that I can no longer place. The aforementioned Rusher is Bill Rusher the long time publisher of National Review. Rusher’s Gap goes like this:

Suppose you need some work done on your house. You call in a contractor or two and get an estimate of what it will cost. Let’s say the estimate is $10,000. But you’re a wise man of the world, you know the actual cost is going to be higher so you make what we might term a cynic’s adjustment and tack on say another $2,000. Rusher’s Gap is the amount that the actual cost exceeds your revised, adjusted cost estimate.

Yes, you and I know that politicians will always disappoint. But for conservatives, the Rusher’s Gap this cycle has really been something to behold.