Answer
Christopher Cox retired from government service in 2009 after a tenure that included serving as Chairman of the Securities and Exchange Commission (SEC) from 2005 to 2009. During his time at the SEC, Cox oversaw the implementation of the Sarbanes-Oxley Act of 2002, which was enacted in response to the Enron scandal. Cox also played a key role in the government's response to the financial crisis of 2008.