He is the new head of the U.S. Securities and Exchange Commission. As expected, he's about the least suitable choice to this position if you use the standards of the average thinking person. But he's on par for the Bush administration. He was a
primary sponsor of the Private Securities Litigation Reform Act of 1995 which helped to prepare the ground for the Enron case and other fraudulent accounting practices. Cox is known as a curber of investor lawsuits, ya know. Expect a lot more Enrons and WorldCom scandals in the future.
Billmon has more on Representative Cox.