The Retail Industry Leaders Association hired Mark Warren as vice president for tax policy, where he will drive the group's tax agenda.

Warren was deputy assistant secretary at the Treasury department where he worked in the office of legislative affairs. He joined the department in June 2006 and advised the Treasury Secretary on legislative matters including tax, pension, Social Security, the budget and economic policy.

Prior to Treasury, Warren spent ten years on Capitol Hill, where he served as special counsel to Sen. Kit Bond, R-Mo., chief counsel to the U.S. Senate Republican Policy Committee, and staff director and chief counsel at the Senate Committee on Small Business.

Warren holds an undergraduate degree in finance and a law degree from Georgetown University, and a masters in tax law from New York University. Warren has also spent time in private practice working in New York and Washington.