U.S. Secret Service Director Mark Sullivan, who took office in 2006, has resigned after 30 years in the department. Official leaves office on February 23.
Sullivan as the director of the service personally oversaw 23 special events, was responsible for security at the two inaugurations. However, a career bureaucrat marred series of scandals.
The Secret Service is subject to the U.S. Department of Homeland Security. The main objectives of the federal agency is to prevent counterfeiting of American money, bonds and other valuable documents, as well as protection of the president, vice president, their families, and other senior officials.