Legalized corruption is widespread, and that's the job of 35,000 Washington, D.C., lobbyists earning millions upon millions of dollars. They represent America's big and small corporations, big and small labor unions, and even foreign corporations and unions. They are not spending billions of dollars in political contributions to encourage and assist the White House and Congress to uphold and defend the U.S. Constitution. They are spending that money in the expectations of favors that will be bestowed upon them at the expense of some other American or group of Americans.

This power helps explain, for example, why a seat on the House Ways and Means Committee, not to mention its chairmanship, is so highly coveted. For the right price, a tax loophole, saving a company tens of millions of dollars, can be inserted into tax law, a la the Charlie Rangel scandal. At state levels, governors can award public works contracts to a generous constituent. At the local levels mayors can confer favors such as providing subsidies for sports stadia and convention centers. When politicians can give favors, they will find buyers.

The McCain-Feingold law was to get "money out of politics," but more money was spent in the 2008 election cycle than ever. The only way to reduce corruption and money in Washington is to reduce the power politicians have over our lives. James Madison was right when he suggested, "All men having power ought to be distrusted to a certain degree." Thomas Jefferson warned, "The greatest calamity which could befall us would be submission to a government of unlimited powers." That's what today's Americans have given Washington — unlimited powers.

Walter E. Williams is a professor of economics at George Mason University.