The Post devoted a business section article to Newt Gingrich's supply side economics. It would have been useful to note the findings of the research on this topic, for example this Congressional Budget Office study. It found that even in a best case scenario the additional growth sparked by a tax cut could replace less than a third of the lost tax revenue. Even this effect would be temporary, with slower growth in later years implying larger deficits.A democracy works only if it has an informed electorate. The reason why "the press" was acknowledged and highlighted in the First Amendment to the Constitution. A free press is important. But a commercial press that prints only what corporations and the rich elite want the people to hear is not a truly "free" press. The Constitution called for "freedom of the press". Only with a free press that prints facts, truths, revelations, analysis, criticism will the electorate be empowered to vote responsibly.
The Post should not just throw Gingrich's assertions out to readers as though they might be true. There is extensive research on this topic which the Post's business reporters should be familiar, its readers almost certainly are not.
Sadly, Dean Baker is pointing out that the US now fails the test of democracy. The US is rapidly becoming a banana republic.