80% of our national debut has been accumulated under Republican Presidents, so why are they whining now?

N.B.:  The Parado Principle, often known as the rule of 80/20, was first used as a principle of inventory management, which was used in the pre just in time era, and meant that 80% of sales came from 20% of products, or 80% of inventory value was in 20% of the items.  It has other meanings now:

 “It has many names-the Parado Principle, the Principle of Imbalance, and the 80/20 rule–but they all mean the same thing. Richard Kock, author of The 80/20 Principle explains, “The 80/20 principle states that there is an inbuilt imbalance between causes and results, inputs and outputs, and effort and reward.” In fact, this consistent mathematical relationship indicates that 80 percent of output comes from 20 percent of inputs, not only in the business world, but also in virtually every aspect of life.”

see: http://www.imdiversity.com/villages/careers/articles/simmons_six_career_secrets.asp