The controversy surrounding decades-old newsletters to which GOP presidential aspirant Ron Paul lent his name is regrettable. First, it is regrettable because the sometimes bigoted, intolerant content of those newsletters is inconsistent with the views of the congressman as understood by those of us who know him. Yet, while Mr. Paul disavows supporting those ideas, he refuses to repudiate his close association with their likely source, Lew Rockwell, head of the Alabama-based Mises Institute.

Ron Paul's libertarian campaign has traction because so many Americans respond to his messages:

• Tax and spending. If ever there were sound and fury signifying nothing, it has to be the recent "debate" over the budget. Covered by the media as though it was negotiations on the Treaty of Versailles, the wrestling match between Republicans and Democrats centered on the nearly trivial question of whether the $12 trillion increase in the national debt over the next decade should be reduced by 3% or 2%.

Mr. Paul would cut the federal budget by $1 trillion immediately. He can't do it, of course, but voters sense he really wants to. As Milton Friedman once explained, the true tax on the American people is the level of spending—the resources taken from the private sector and employed in the public sector. Whether financed from direct taxation, inflation or borrowing, spending is the burden.