It turns out that signed off regarding the publication of the racist screeds in his newsletter:

Ron Paul, well known as a physician, congressman and libertarian , has also been a businessman who pursued a marketing strategy that included publishing provocative, racially charged newsletters to make money and spread his ideas, according to three people with direct knowledge of Paul’s businesses.

The Republican presidential candidate has denied writing inflammatory passages in the pamphlets from the 1990s and said recently that he did not read them at the time or for years afterward. Numerous colleagues said he does not hold racist views.

But people close to Paul’s operations said he was deeply involved in the company that produced the newsletters, Ron Paul & Associates, and closely monitored its operations, signing off on articles and speaking to staff members virtually every day.

“It was his newsletter, and it was under his name, so he always got to see the final product. . . . He would proof it,’’ said Renae Hathway, a former secretary in Paul’s company and a supporter of the Texas congressman.

The newsletters point to a rarely seen and somewhat opaque side of Paul, who has surprised the political community by becoming an important factor in the Republican race. The candidate, who has presented himself as a kindly doctor and political truth-teller, declined in a recent debate to release his tax returns, joking that he would be “embarrassed” about his income compared with that of his richer GOP rivals.

Well, if he was just cashing in on bigoted rubes, this actually is consistent with the basic principle(s) of  Libertarians, “F%$# you, I’ve got mine.”