David Plouffe

Now, the president would like to do tax reform, which would obviously lower rates for most people in America and make the tax code fair and get rid of loopholes and special treatment. But absent tax reform, the president believes the right way to get our fiscal house in order is ask the wealthy to pay their fair share.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.