Rick Perry , whose poll numbers dropped sharply , is planning to propose a flat tax . John Avlon says it could boost Perry 's fortunes and it would be good policy . Obama talked about tax simplification on the '08 campaign trail , and Speaker John Boehner and House Budget Chairman Paul Ryan have long advocated it as well . Comment:
Rick Perry , whose poll numbers dropped sharply , is planning to propose a flat tax . John Avlon says it could boost Perry 's fortunes and it would be good policy . Comment: