Randall Tobias, head of the Bush administration's foreign aid programs, abruptly resigned Friday after his name surfaced in an investigation into a high-priced call-girl ring. Tobias submitted his resignation a day after he was interviewed by ABC News for an upcoming program about an alleged prostitution service run by the so-called D.C. Madam. Tobias confirmed that he had called the Pamela Martin and Associates escort service to have women come to his condo and give him massages. Tobias, 65, who is married, [claimed] there had been no sex" during the women's visits to his condo. His name was on a list of clients given to ABC by Deborah Jeane Palfrey, who owns the escort service and has been charged with running a prostitution ring in the nation's capital. Tobias held two titles: director of U.S. foreign assistance and administrator for the U.S. Agency for International Development. His rank was equivalent to deputy secretary of state. Before joining the administration, Tobias was a director and chairman of Eli Lilly and Co., the Indianapolis-based pharmaceutical company. Palfrey recently made good on her threat to identify high-profile clients, listing in court documents a military strategist known for his "shock and awe" combat theories. Palfrey, 50, was indicted in March by a federal grand jury on charges of running the alleged call-girl ring from her home in Vallejo, Calif. Palfrey claimed she has 46 pounds of phone records involving clients [and] threatened to sell phone records that would identify 10,000 clients to pay for her criminal defense, but a federal judge ordered her not to release them. Palfrey, however, gave them to ABC News before the order took effect.